Amazon announced today that CEO and Founder Jeff Bezos will move from his leadership role to an executive position.
According to a corporate memo first discovered by CNBC, Amazon intends to replace Bezos with Andy Jassy, CEO of Amazon Web Services.
The timing of the transition is interesting – that is, given the rapidly changing political climate as the US moves from the Trump era of Twitter beef between the POTUS and the world’s richest man to the more traditional presidency of Joe Biden.
There are still many questions about how the Biden administration intends to treat big tech outfits like Amazon, but it is not unfounded to wonder if Bezos failed to put himself in a position to focus on the bigger political picture (and maybe making some progress with a less Elon Musk-oriented federal outfit) while Jassy takes on the day-to-day running of the company.
This story breaks, watch for more developments throughout the day …
Read Next: How to Check Google Meet Video Quality Before Joining a Call
The transmission window may be closed, but that doesn’t mean the rumor mill has closed! The speculation about summer movements is heating up. So check out the latest Gssip below and check out all the official offers here.
TOP STORY: PSG returns to Messi
Paris Saint-Germain was informed by the news that Neymar Marca are expected to sign a four-year extension at Parc des Princes and Marca say the Ligue 1 champions will try to reunite the Brazilian Lionel Messi this summer.
1 relatives
Barcelona boss Ronald Koeman hinted on Tuesday that although he remains hopeful, he doesn’t expect Messi to stay past the end of the season and PSG are now determined to land the Argentine.
PSG have already expressed their interest in signing the striker, who has clearly been insecure this season. Contract details emerged this week that add to the drama about his future.
Messi and Neymar had a strong partnership at Camp Nou and the latter has indicated that he would like to play again with his former teammate.
PSG hope Neymar’s decision to stay could convince Messi to part ways with Barca and complete an impressive front three, including Kylian Mbappe.
Barca may have to reassess their situation this season amid financial troubles as players failed to get paid for December and debts rise.
– Stream ESPN FC Daily on ESPN + (US only) – Stream LIVE games and reruns on ESPN + (US only)
Juve are ready for new Pogba endeavors
Juventus continues to dream of one Paul Pogba return this summer if calciomercato is to be believed.
The Turin club were tempted to sign a new midfielder in January but ultimately decided to wait for the summer to bring in bigger rewards.
• Barnwell’s best moves: 100-51 | 50-1 • Summer transfer notes • Recently completed major transfers
Now, however, they are waiting to see what Manchester United does next. Pogba’s contract has another year to run and so far he has yet to sign an extension. So Juve is just waiting to see the next move from club and player. If they can get him off his contract this summer, they’ll be ready to act, the report said.
However, they are also aware that getting Pogba across the line could be difficult and are therefore well advanced on Plan B in Lyon as well Houssem Aouar.
Juve are still thinking about Milik despite moving from Marseille
Arkadiusz Milik He may have come to Marseille on loan from Napoli but Juventus haven’t given up on the idea of signing the Polish striker this summer.
That’s according to Calciomercato, who reports that the old lady may renew her interest in the 26-year-old at the end of the season.
Milik has come to Marseille on loan until 2022 and Ligue 1 has the first opportunity to buy the striker on a permanent basis. Marseille would have to pay £ 7m at the end of the loan period and an additional £ 3.6m in bonuses.
They would also have to repay 20 percent of any future sale to Napoli, while Juve thinks they could potentially move Milik back to Italy through a lengthy deal.
Tap Ins
– Manchester City sent scouts to watch Palmeira’s star Patrick de Paula According to the Brazilian website UOL.com in the final of the Copa Libertadores. The outlet reports that Pep Guardiola is keeping an eye on the 21-year-old, but Benfica is also keen to sign the midfielder. The player has a huge $ 100 million release clause. Unsurprisingly, while there have been several approaches for him, no official offer has yet been made.
– Sporting Lisbon paid 16 million euros to sign the Portuguese international striker Paulinho from Braga. According to L’Equipe, the 28-year-old has signed a five-year deal with the current leaders for a record fee and Sporting hopes his arrival can catapult them to a league title. Paulinho will be reunited with coach Ruben Amorim, for whom he played at Braga.
Another day, another round of testing (and yes, another blast). Today, Tuesday, February 2, 2021, flight teams conducted a high-altitude test flight with a Starship prototype at SpaceX’s launch facility near Boca Chica, Texas. Similar to the previous test in December, the SN9 was powered by three Raptor engines, flew to an altitude of 10 km, and then attempted another “belly flop” to test its fins and aerodynamic surfaces.
As always, the event was streamed live by SpaceX, NASASpaceFlight, LabPadre and several other observers. As with the SN8 test flight, SpaceX’s coverage offered multiple vantage points (landing pad, engine bay, fuselage, aerial drone, etc.). The flight began at 2:25 p.m. CST (4:25 p.m. EST; 12:25 p.m .: 3 p.m. PST) when the spacecraft ignited its three engines and began its ascent.
At 2:27 p.m., approximately one minute and forty-five seconds after the flight began, SN9 began shutting down its three Raptor engines, one at a time. Four minutes after the start of the flight (2:29:15 pm), the ground crew announced that the test vehicle had reached its peak of 10 km. At 2.29:48 p.m., all three engines had failed and the SN9 began to realign itself for its “bellyflop” maneuver and its descent.
The spacecraft SN9 ignites its three Raptor engines and takes off. Image Credit: SpaceX
The SN9 had a steady descent, and at 2:31:35 the ground teams attempt to restart two engines and swing the fuselage back to make a landing burn (with one engine). Unfortunately, one of the two Raptor engines stuttered and didn’t re-ignite, causing the SN9 to spin over and throw away a piece of debris before landing on its side.
This was a little different from the SN8, where an engine could not be restarted either. At this point, a low pressure issue arose after the ground teams switched to the SN8’s fuel collection tank. This prevented either of the two Raptor engines from re-igniting, causing the SN8 to land too hard and explode. It’s unclear at this point what caused the problem this time, but it could be a fuel line, a tank problem, or an issue with the one Raptor.
But then as now, Musk and the Boca Chica ground controllers were generally happy with the results. In both cases, the prototypes hit the mission’s ascent, engine shutdown, reorientation and descent elements. The only thing that has not yet been validated is the switchover during the “flip and burn,” where the engines draw fuel from the collection tanks to make their landing burn.
The SN9 explodes while trying to hold onto the landing. Image Credit: SpaceX
In addition, there was no damage to SN10, which was recently brought out and stationed near the SN9 launch pad. This is particularly fortunate as the SN10 is now on deck for the next altitude test. This is in line with SpaceX’s iterative process of creating lots of prototypes (sometimes with slight variations in design) and testing so as not to capture as much data as possible.
These high altitude tests will validate the design, flight systems, and re-entry capabilities of the spacecraft. Once this is complete, SpaceX will launch orbital test flights involving both the spaceship and the Super Heavy Booster. This will be the first fully reusable transportation system and most powerful launcher ever developed, capable of lifting more than 100 tons (110 US tons).
These tests are also the culmination of many years of work and the fulfillment of Elon Musk’s long-term vision to revive space exploration. This includes sending payloads and crews into orbit, to the moon, and to Mars. Hopefully things will go better with the SN10 prototype. At this point, SpaceX just needs to hold the landing and show that the “spin and burn” can be withdrawn, and it is “next stop: orbit!”
A man waits for pharmacist Joe Borge in Danvers, MA on February 1, 2021. On the first day of Phase 2 of the COVID-19 rollout, seniors 75 and older will be vaccinated at the Walgreens pharmacy on 107 High Street. in Danvers.
Pat greenhouse | Boston Globe | Getty Images
The U.S. will increase its weekly deliveries of Covid-19 vaccine doses to states by 5% and send some doses direct to pharmacies to expand access to the life-saving shots nationwide, the Biden government’s Covid-19 response team said Tuesday With.
The federal government will now be sending at least 10.5 million doses a week to the US for the next three weeks, White House Covid Response Coordinator Jeff Zients said in a conference call with reporters Tuesday.
The surge comes a week after the White House announced it would increase supplies to states by 16% over the next three weeks. The government is also buying an additional 100 million doses of Pfizer and Moderna’s two-shot vaccines, and said last week it would have enough doses ready for 300 million Americans by the end of summer or early fall.
The federal government will be sending cans directly to drugstores starting February 11, Zients said. However, due to the limited supply of vials, the program will begin with around 6,500 retail stores nationwide, which will eventually expand to 40,000 pharmacies.
The US has allocated 1 million doses to pharmacies in addition to the 10.5 million it has reserved for states, tribes and US territories as of next week, Zients said.
Zients said the expanded vaccine offering was “all a result of increased production”. He said the administration was able to raise the necessary resources to extract an additional sixth dose from Pfizer’s vaccine bottles, which were originally supposed to contain five shots.
The supply kits that are being sent to states with the company’s vaccine now include a special, low dead space syringe needed to pull the extra shot, which should translate into a 20% increase in the nationwide supply of Pfizer vaccine.
The federal government has already partnered with CVS and Walgreens to vaccinate people in long-term care facilities. However, this program differs from a plan announced in November under the previous Trump administration that aims to make cans available in a larger number of retail pharmacies.
Some drugstore chains have already started vaccinating people in certain states who assign a portion of their doses directly to those pharmacies. The new partnership would make it possible to forward the recordings directly from the federal government to stationary retail chains.
“This pharmacy program will expand access to neighborhoods across the country so you can schedule an appointment and receive your admission conveniently and quickly,” said Zients.
Drug chains and pharmacies should play a bigger role in distributing the vaccine once the government expands access to more people. However, the slower than expected rollout has frustrated pharmacy chains, who have said they could use their existing footprint to accelerate sales.
The Biden government had previously announced that it would “quickly get under way” efforts to ensure vaccines are available from local pharmacies in the US. President Joe Biden said the plan would ensure most Americans have access to a vaccine just a few miles from their homes.
– The Associated Press contributed to this report.
This article was originally published by Christopher Carey on Cities today, the leading news platform for urban mobility and innovation reaching an international audience of city guides. For the latest updates, see Cities Today Twitter, Facebook, LinkedIn, Instagram, and Youtubeor sign up for Cities Today News.
The so-called “smallest electric airport in the world” for autonomous air mobility is to take place in Coventry.
The project which was awarded £ 1.2 million (US $ 1.64 million) by the UK governmentFuture Flight Challenge – is being developed by the tech startup Urban-Air Port with the support ofHyundai will test how electric vertical take-off and landing aircraft (eVTOL) such as air taxis and autonomous delivery drones can be integrated into the city’s mobility infrastructure.
Speak withCities Today Sunil Budhdeo, Transport Innovation Manager for Coventry City Council, said the city had a lot of leeway to use the hub.
“One of the reasons we’re at the forefront of this project is our commitment to reducing congestion and emissions.
“There are a number of potential uses that we will be investigating during the trials, such as the delivery of cargo packages. In the current conditions of this pandemic where there are lots of home deliveries, vans are floating around like there’s no tomorrow which has resulted in more traffic jams.
“Another area is healthcare: if there is an accident and someone needs emergency treatment and we have a drone nearby that can pick up the passenger and take them to the hospital, it would be more efficient than a large drone helicopter that you do Roads or traffic would have to close to ensure that the helicopter lands safely. “
The trials will take place at Coventry’sThe Ricoh Arena, a sports and exhibition venue on the outskirts of the city, was chosen for its strategic location on the M6 motorway, which handles large volumes of cargo deliveries, according to Budhdeo.
“Trucks can drop off their loads at the city airport, which can then be reloaded onto smaller drones and into the city center without clogging our streets,” he said.
The smallest airport in the world
The project is currently in a development phase and is expected to be operational in November 2021.
“Essentially this will be the smallest airport in the world. It’s like an electric water point that receives autonomous cargo drones and passenger air taxis. It will also welcome visitors and passengers to see what the infrastructure can do, ”said Ricky Sandhu, founder of Urban-Air PortCities today.
“The idea is to show how the urban airport infrastructure fits in efficiently with the existing urban infrastructure. Space in the city is very limited. That’s why we want to make sure we have a scalable infrastructure that is adequately sized and that provides the capacity but also fits into our cities without causing too much disruption. “
“The UK government is now very supportive of the air mobility sector. It’s pretty interesting because a few years ago the UK was the last place you’d think this type of technology would be integrated, but given the government’s economic recovery and net-zero carbon targets for 2050, it was actually pushed forward high on the agenda, ”added Sandhu.
Urban-Air Port plans to install more than 200 emission-free sites worldwide over the next five years to meet global demand for reducing traffic congestion and reducing air pollution.
NASA has predicted that urban air mobility could be worth up to $ 500 billion in the short term in the US alone, but that a lack of infrastructure is a significant barrier to market growth.
SHIFT is brought to you by Polestar. It’s time to accelerate the transition to sustainable mobility. That’s why Polestar combines electric driving with state-of-the-art design and exciting performance.Find out how.
Propublica published an article last week describing the fear of a committed climate activist.
It’s rare for an article to highlight the real point in the first five words, but this is a good example, emphasis mine.
Peter Kalmus, beside himselfstumbled back to the car. It all happened. All the stuff that he tried to make others see and didn’t make others see – it was all here. The day before, when his family began their Labor Day backpacking trip along the oak-lined, dry creek bed in Romero Canyon in the mountains east of Santa Barbara, the temperature had been 105 degrees. Now it was 110 degrees and under his backpack his “big mammal self”, as Peter called his body, was more than overheated. He melted together. Everything felt wrong. His brain felt wrong, and the planet felt wrong, and everything that lived on the planet felt wrong, wrong.
Near the starting point, Peter’s death turned around: What will the next summer bring? How hot will it be in 10 years? Yes, the data showed that the temperature would only rise a few tenths of a degree Celsius per decade. But those tenths would add up and the extreme temperatures would rise even faster, and while Peter’s huge mammal body could handle 100 degrees, 110 drove him crazy. It just wasn’t a friendly climate for a person. 110 degrees was hostile, a strange planet.
Poor Peter, nobody is listening to him.
For years in articles in Yes! Peter had asked in the Los Angeles Times magazine in his book “Being the Change: Live Well and Start a Climate Revolution” on social media for people to be aware of the global emergency. “Is that my personal hell?” he tweeted this past fall. “That I have to desperately try all my life to convince everyone NOT TO DESTROY% $ # ^ @ ^ EARTH?”
Apparently his transformation and descent happened relatively quickly.
He had met Sharon at Harvard. They had moved to New York to do an apprenticeship. Before Peter returned to school, he had made good money for a while writing code on Wall Street. Now, for the first time, he really heard that the planet, his son’s future home, was about to roast. Point.
This was a disaster – a physical, physical disaster, and here he was, a physicist about to have a son. He left the lecture hall dazed. “I was like, ‘Are we just going to pretend this is a normal science talk?'” He told me, remembering his thoughts. “We are talking about the end of life on earth as we know it.”
For the next eight months, Peter was walking around Manhattan and “freaking out on my brain,” he said, like “one of those people around who have sandwich boards.”
His poor wife and children.
Four years after the climate awakened and acted, Peter felt that he had almost reached zero. One night, frustrated with inactivity and disgusted with fossil fuel consumption, he was sitting at his computer calculating the sources of all of his own emissions so he could reduce them.
In the morning he handed Sharon a pie chart.
What led to …:
Next was dumpster diving (which eventually – and thankfully – turned into an arrangement with Trader Joe’s to pick up their unsalable food every other Sunday night). Peter’s move – “seven or eight boxes,” says Sharon; “Three boxes,” said Peter, contained dozens of eggs, only one of which was broken. Apartments with (mostly not moldy) strawberries. Bread after the expiration date. Peter did his best to put things away before he fell asleep because waking up in the mess was driving Sharon crazy. But … it was a lot. Low carbon life was a lot.
They stopped using the gas dryer. They stopped shitting in the flush toilet and started practicing humanures and composting their own dung. Sharon had lived in an outhouse in Mongolia, “that was something I was used to,” she said. To be honest, she liked the local, organic, anti-capitalist politics. “Marx writes about this in ‘Capital, Volume 1’ that one of the reasons Europeans started using chemical fertilizers is because people are moving to the cities and the countryside … and people have stopped moving to the countryside poop became less fertile. “The main problem for Sharon was that her bathroom was small and the composting toilet was inside. They used eucalyptus leaves to cover up the smell, but then there were small leaves all over the bathroom. After a while, Peter moved the composting toilet outside.
His wife had patience that most of us could only dream of. His children got on in their own way.
Sharon staged little riots to keep a feeling for herself – little things like using a lot of hot water to wash dishes, and bigger things like sometimes stopping talking. Braird and Zane also absorbed and responded in their own way to Peter’s passionate Cri de Coeur. Zane, the younger, started his own regular Greta Thunberg style climate strikes in front of the town hall. Braird, the elder, meanwhile, entered his youth, differentiated and became nihilistic. When asked what he wanted to do with his future, Braird said, “What future?” When asked what he thought of climate change, he sank a dagger into his father’s heart, as only a child can. Braird said, “I don’t really think about it.”
During an interview with SELF magazine published on Feb.2, the actress recalled that she wasn’t in the best of mind after the success of the 2018 Netflix movie, To All the Boys I Loved Before Space was.
“I only said yes to everything because it is a once-in-a-lifetime opportunity and you want to benefit from it and have the feeling that you are taking it all in,” the 23-year-old admitted. “But I’ve never felt so horrible mentally. I was so burned out. I would go home at night and not speak. I couldn’t eat. I couldn’t sleep. I would shake, go to bed and shiver.” Wake up because it was just so much stimulation. “
Fortunately for Lana, she had an amazing support system in her five year old boyfriend during this time Anthony De La Torre.
“Anthony – every night or every morning – folds my PJs and tucks them under my pillow so I don’t have to look for them,” she explained. “That’s the greatest expression of love for me. It’s so much better than, I don’t know. A hot air balloon.”
Everyone by now knows the ridiculous Super Bowl-related prop bets. One of the most popular, at least for internet feed, is the over / under on the length of the national anthem. With Eric Church and Jazmine Sullivan teaming up for the first anthem duet since Super Bowl 40 in 2006 (Aaron Neville and Aretha Franklin), this seemingly straight forward prop adds even more intrigue to Super Bowl 55 as people will bet on it – and potentially argue about – all kinds of elements of performance.
First a little background. The national anthem wasn’t always a focus of pre-Super Bowl celebrations. Early on it was often sung by choirs or performed by brass bands. Trumpeters have performed the hymn three times, and “America the Beautiful” has been performed once instead. Whitney Houston’s breathtaking rendition of Super Bowl 25 in 1991, which took place during the Gulf War, ushered in a new era of anthem performance in many ways.
SUPER BOWL 55 PICKS: Against the spread | Just predictions
After that performance, which lasted 1:56, the average length of the anthem has been a little over 1:56 since then, with the longest rendition in that period being at Super Bowl 47 in 2013 (Alicia Keys, 2:35) and the shortest coming in 1998 at Super Bowl 32 (Jewel, 1:27). In recent years the anthem has evolved even further, with six of the last eight renditions lasting more than two minutes and the other two lasting at least 1:52.
Of course, as with many novelty bets, there has been some controversy over the length of the hymn performances. Some books list the official start of Hymn Time when the first note is sung and the official end when the start of the last note is sung. That was a point of contention in 2019 when Gladys Knight sang the final word of the anthem “brave” three times, leading many to believe they had won the OVER on the bet. However, many books only counted the beginning of the first “brave”, which meant that the UNDER was redeemed. When placing your bets, make sure you know the official rules as the customer service for online national anthem bets is not particularly responsive.
All odds courtesy of oddsshark.com
Super Bowl National Anthem Prop Betting 2021
How long does the national anthem run?
About 1:59 ALSO
Below 1:59 -140
While we don’t have examples of Eric Church singing the national anthem before a sporting event, we do have two examples from Jazmine Sullivan: playing the NHL Stadium Series in 2016 (1:38) and before a game of the 76ers in 2014 ( 1): 44-1: 49, depending on how you count the last note).
Given what we know about recent anthem trends and the fact that the last duet of that performance at the 2006 Super Bowl (Aaron Neville, Aretha Franklin) lasted 2:08, the OVER seems like a good bet. You never know how two performers will split the song up, but chances are they’ll take their time and harmonize. If Church has his guitar (very likely) that might add some time too. Sullivan’s performance of the anthem before a 76ers game in 14 included guitar accompaniment, which is worth it.
Ultimately, the OVER equals five of the last six hymn performances in the Super Bowl, so getting it at a steady price is good value for money.
Will Eric Church or Jazmine Sullivan forget / leave out a word from the national anthem?
This seems unlikely, but the chances are slightly higher if two people occur. And let’s face it – hang on to every word of the anthem and possibly argue with a seedy online sportsbook about whether Church said “dangerous fight” or “dangerous flight” would be a great way to add to your Monday after the Super Bowl spend.
Will any player raise a fist during the national anthem?
Will a player take a knee during the national anthem?
During the season’s opening game, Chiefs player Alex Okafor knelt and raised a fist in the air during the anthem. Tampa players have kneeled in the past, but this season it appears that some have only locked their arms on the sideline during the anthem. The problem with these props is that you need to have evidence. Even if a player kneels or raises a fist, you are at the CBS show to show them off. Of course, it makes more sense to say yes to both, but there are many reasons to believe that it will be no. All it takes is one and you can bet that some players will be eager to make a statement on such a big stage.
Which player will be featured first during the national anthem?
Tom Brady -130
Patrick Mahomes -110
This could really go either way. Unfortunately we don’t have much to say about the championship games as neither the Packers nor the Bills were shown during the respective anthems, presumably because they stayed in their locker rooms. One thing we do know is that neither Brady nor Mahomes were the first players on their teams to appear during the anthem in both games, but Mahomes (second) was shown for his team before Brady for his (fourth, without Coach or full team) shots). Does that mean something? Of course not. This is a coin toss. You have the old face of the NFL versus the new face, so you might as well take the better odds with Mahomes.
Which player will be featured first during the national anthem?
Travis Kelce -130
Rob Gronkowski -110
Kelce has more cache than Gronk at this point in his career, so he’s the safer bet. He was the first Chiefs player to be featured during the anthem before the AFC championship game, while Gronk was only the fifth Buc before the NFC championship game (and that was mainly because he had a shot with Tom Brady). Of course, it’s up to the cameramen and producers here. So if Kelce is behind a teammate or Gronk is standing alone with a single tear on his cheek, then it could easily be Gronk. With something like this, it is usually wise to leave with the better odds, even if a player seems more likely.
Which coach should be shown first during the national anthem?
Andy Reid -130
Bruce Arians -110
Arians was shown first during the national anthem at the NFC championship game, while Reid was shown third during the anthem at the AFC championship game. That means no one had to deal with coaches / players from the other teams, so that only tells us so much. Reid is definitely more recognizable – and more camera-friendly in his own way – so he’ll likely get the nod, but like the last two, it’s really a mistake. Arians offers better odds, so he’s probably the slightly smarter game – especially when the camera person is fixated on the weird way Arians wears his microphone belt – but gut says it’s Reid here (especially if he’s a foggy one Wearing face shield).
Nobody has visited the moon since 1972. But with the advent of commercial human space travel, the urge to return is rising again, creating a new space race. NASA has selected the private company SpaceX as part of its commercial spaceflight, but the company also has its own space exploration agenda.
To enable flights to the moon and beyond, both NASA and SpaceX are developing new heavy-lift rockets: the SpaceX spaceship and NASA’s Space Launch System.
But how do they differ and which one is more powerful?
Spaceship
Rockets go through several stages to enter orbit. Disposing of spent fuel tanks in flight makes the missile lighter and therefore easier to accelerate. Once operational, SpaceX’s launch system consists of two phases: the launch vehicle known as the Super Heavy and the spaceship.
Super Heavy is powered by the Raptor rocket engine, which burns a combination of liquid methane and liquid oxygen. The basic principle of a liquid fuel rocket engine is that two propellants – a fuel such as kerosene and an oxidizing agent such as liquid oxygen – are brought together in a combustion chamber and ignited. The flame creates hot gas under high pressure which is expelled through the engine nozzle at high speed to generate thrust.
The rocket will deliver 15 million pounds of thrust upon launch, which is roughly twice as much as the Apollo-era rockets. On top of the launcher is the spaceship, which is itself powered by six other Raptor engines and is equipped with a large mission bay to accommodate satellites, compartments for up to 100 crew members and even additional fuel tanks for refueling in space long time interplanetary human space travel.
Super Heavy separates from the spaceship. Wikipedia, CC BY-SA
The spaceship is designed in such a way that it can operate in the vacuum of space as well as in the atmosphere of Earth and Mars. Small movable wings are used to glide to the desired landing zone.
Once over the landing area, the spaceship tilts to a vertical position and uses its built-in Raptor motors to perform a powerful descent and landing. It will have enough thrust to lift itself off the surface of Mars or the Moon, overcome the weaker gravity of these worlds, and return to Earth – another powerful soft landing. The spaceship and the Super Heavy are both fully reusable and the entire system is designed to lift more than 100 tons of payload onto the surface of the Moon or Mars.
The spaceship matures quickly. A recent test flight of the Starship prototype SN8 successfully demonstrated a number of maneuvers required for this function. Unfortunately there was a malfunction in one of the Raptor engines and the SN8 crashed on landing. Another test flight is expected in the coming days.
NASA’s space launch system
NASA’s Space Launch System (SLS) will take over the crown from the discontinued Saturn V as the most powerful rocket the agency has ever deployed. The current incarnation (SLS block 1) is almost 100 meters high.
The SLS core stage, which contains more than 3.3 million liters of liquid hydrogen and liquid oxygen (equivalent to one and a half Olympic swimming pools), is powered by four RS-25 engines, three of which were used on the previous space shuttle. Their main difference from the Raptors is that they burn liquid hydrogen instead of methane.
Levels of the SLS. NASA
The core stage of the rocket is complemented by two side-mounted solid rocket boosters that deliver a combined total of 8.2 million pounds of thrust at launch – about 5% more than the Saturn V at launch. This will put the spaceship into low earth orbit. The upper stage is designed to lift the attached payload – the astronaut capsule – out of orbit and is a smaller liquid fuel stage powered by a single RL-10 engine (already used by ATLAS and DELTA rockets) and smaller and lighter than is the RS-25.
The Space Launch System will send the Orion crew capsule, which can support up to six crews for 21 days, to the moon as part of the Artemis-1 mission – a task that current NASA rockets cannot currently perform.
It is said to have large acrylic windows so that astronauts can watch the journey. It will also have its own engine and fuel supply, as well as secondary propulsion systems for the return to Earth. Future space stations such as the Lunar Gateway will serve as a logistical hub, which can also include refueling.
The core stage and booster missiles are unlikely to be reusable (instead of landing, they will fall into the ocean), so the SLS system is more costly in terms of both materials and the environment. It was designed to evolve into larger stages capable of carrying crew or cargo weighing up to 120 tons, which is possibly more than the spaceship.
NASA’s SLS and the SpaceX spacecraft on the right could take us both to the moon and beyond. Ian Whittaker / NASA / SpaceX, author provided
Much of the technology used in SLS is what is known as “legacy equipment” as it has been adapted to previous missions, reducing research and development time. However, earlier this month a Test fire the SLS core stage was stopped one minute after the eight minute test began due to a suspected component failure. No significant damage has occurred, and SLS program manager John Honeycutt stated, “I don’t think we’re considering a significant design change.”
And the winner is…
Which spaceship that is likely to be reached will carry a crew to the moon first? Artemis 2 is slated to be the first crewed mission where SLS performs a moon flyby and is expected to launch in August 2023. While SpaceX has not scheduled a specific date for the crewed launch, #dearMoon is running – a project that includes lunar tourism slated for 2023. Musk has also stated that a manned Mars mission could take place as early as 2024, including with Starship.
Ultimately, it’s a competition between an agency that has years of testing and experience but is limited by fluctuating changes in tax budget and administrative policies, and a company relatively new to the game but already using 109 Falcon 9 missiles Has started 98% success rate and has a dedicated long-term cash flow.
Whoever reaches the moon first will usher in a new era of exploration of a world that still has much scientific value.
This article by Gareth Dorrian, Postdoctoral Researcher in Space Science at the University of Birmingham, and Ian Whittaker, Lecturer in Physics at Nottingham Trent University, is republished by The Conversation under a Creative Commons license. Read the original article.
Galaxy fusions are beautiful sights, but ultimately fatal. During the collision, the combined galaxy will glow brighter than ever before. But that fame comes with a price: all of these new stars use up all available fuel, and star formation comes to a standstill.
Our own galaxy, the Milky Way, will merge with our closest neighbor, Andromeda, in about 4 billion years. And our galaxy is not alone: galaxies are merging with one another throughout the universe, as evidenced by the abundance of galaxies caught in the act (so to speak) through our observations.
It is difficult to find out the details of the fusion process and its effects on the galaxies. We cannot see a single galaxy fusion event happening in real time because it takes hundreds of millions of years to complete. However, from the multitude of snapshots that we can see, we can observe different stages of the process.
A recent study of a merged galaxy known as ID2299 adds to the intricate portrait. As far as we can tell, it is a glorious sight when galaxies merge for the first time: star formation increases from all collisions of gas clouds and extreme gravitational interactions. In short, the merged galaxies can shine up to ten times brighter than individually.
But to make stars, you need fuel in the form of cold gas reserves. And unfortunately, the fusion event is heating the galaxy in different ways. On the one hand, the central supermassive black hole feeds on fresh rounds of material that are brought into the core. This feeding event triggers the release of intense amounts of radiation that flood the surrounding galaxy. Second, all these new stars contain tons of large, hot, bright stars that also flood the galaxy with high-energy radiation, especially when they go into supernova.
Taken together, the intense heat and lack of raw materials suppress the formation of new stars, and the merged galaxy eventually retreats into galactic retirement and disappears from the cosmic state.
Levels of the SLS. NASA
NASA’s SLS and the SpaceX spacecraft on the right could take us both to the moon and beyond. Ian Whittaker / NASA / SpaceX, author provided
