Sunita Williams news – Artifex.News https://artifexnews.net Stay Connected. Stay Informed. Sun, 25 Aug 2024 01:50:57 +0000 en-US hourly 1 https://wordpress.org/?v=6.6.2 https://artifexnews.net/wp-content/uploads/2023/08/cropped-Artifex-Round-32x32.png Sunita Williams news – Artifex.News https://artifexnews.net 32 32 NASA decision against using Boeing capsule to bring astronauts back adds to company’s problems https://artifexnews.net/article68564692-ece/ Sun, 25 Aug 2024 01:50:57 +0000 https://artifexnews.net/article68564692-ece/ Read More “NASA decision against using Boeing capsule to bring astronauts back adds to company’s problems” »

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The space capsule program represents a tiny fraction of Boeing’s revenue, but carrying astronauts is a high-profile job — like Boeing’s work building Air Force One presidential jets. File
| Photo Credit: AP

NASA’s announcement on Saturday (August 24, 2024) that it won’t use a troubled Boeing capsule to return two stranded astronauts to Earth is a yet another setback for the struggling company, although the financial damage is likely to be less than the reputational harm.

Once a symbol of American engineering and technological prowess, Boeing has seen its reputation battered since two 737 Max airliners crashed in 2018 and 2019, killing 346 people. The safety of its products came under renewed scrutiny after a panel blew out of a Max during a flight this January.

And now NASA has decided that it is safer to keep the astronauts in space until February rather than risk using the Boeing Starliner capsule that delivered them to the international space station. The capsule has been plagued by problems with its propulsion system.

NASA administrator Bill Nelson said the decision to send the Boeing capsule back to Earth empty “is a result of a commitment to safety.” Boeing had insisted Starliner was safe based on recent tests of thrusters both in space and on the ground.

The space capsule program represents a tiny fraction of Boeing’s revenue, but carrying astronauts is a high-profile job — like Boeing’s work building Air Force One presidential jets.

NASA astronauts Butch Wilmore, background left, and Sunita Williams, background right, pose for a photo with their families after leaving the operations and checkout building for a trip to the launch pad at Space Launch Complex 41 on June 5, 2024, in Cape Canaveral, Fla., before launching on the Boeing Starliner capsule for a trip to the international space station.

NASA astronauts Butch Wilmore, background left, and Sunita Williams, background right, pose for a photo with their families after leaving the operations and checkout building for a trip to the launch pad at Space Launch Complex 41 on June 5, 2024, in Cape Canaveral, Fla., before launching on the Boeing Starliner capsule for a trip to the international space station.
| Photo Credit:
AP

“The whole thing is another black eye” for Boeing, aerospace analyst Richard Aboulafia said. “It’s going to sting a little longer, but nothing they haven’t dealt with before.”

Boeing has lost more than $25 billion since 2018 as its aircraft-manufacturing business cratered after those crashes. For a time, the defence and space side of the company provided a partial cushion, posting strong profits and steady revenue through 2021.

Also Read | Why NASA astronauts Butch Wilmore, Sunita Williams may be in space until 2025

Since 2022, however, Boeing’s defence and space division has stumbled too, losing $6 billion — slightly more than the airplane side of the company in the same period.

The results have been dragged down by several fixed-price contracts for NASA and the Pentagon, including a deal to build new Air Force One presidential jets. Boeing has found itself on the hook as costs for those projects have risen far beyond the company’s estimates.

The company recorded a $1 billion loss from fixed-price government contracts in the second quarter alone, but the problem is not new.

“We have a couple of fixed-price development programs we have to just finish and never do them again,” then-CEO David Calhoun said last year. “Never do them again.”

In 2014, NASA awarded Boeing a $4.2 billion fixed-price contract to build a vehicle to carry astronauts to the International Space Station after the retirement of space shuttles, along with a $2.6 billion contract to SpaceX.

Boeing, with more than a century of building airplane and decades as a NASA contractor, was seen as the favourite. But Starliner suffered technical setbacks that caused it to cancel some test launches, fall behind schedule and go over budget. SpaceX won the race to ferry astronauts to the ISS, which it accomplished in 2020.

Boeing was finally ready to carry astronauts this year, and Butch Wilmore and Suni Williams launched aboard Starliner in early June for what was intended to be an 8-day stay in space. But thruster failures and helium leaks led NASA to park the vehicle at the space station while engineers debated how to return them to Earth.

The company said in a regulatory filing that the latest hitch with Starliner caused a $125 million loss through June 30, which pushed cumulative cost overruns on the program to more than $1.5 billion. “Risk remains that we may record additional losses in future periods,” Boeing said.

Mr. Aboulafia said Starliner’s impact on Boeing business and finances will be modest — “not really a needle-mover.” Even the $4.2 billion, multi-year NASA contract is a relatively small chunk of revenue for Boeing, which reported sales of $78 billion last year.

And Mr. Aboulafia believes Boeing will enjoy a grace period with customers like the government now that it is under new leadership, reducing the risk it will lose big contracts. NASA administrator Nelson said Saturday he was “100%” confident that the Starliner will fly with a crew again.

Robert “Kelly” Ortberg replaced Calhoun as CEO this month. Unlike the company’s recent chief executives, Ortberg is an outsider who previously led aerospace manufacturer Rockwell Collins, where he developed a reputation for walking among workers on factory floors and building ties to airline and government customers.

“They are transitioning from perhaps the worst executive leadership to some of the best,” Mr. Aboulafia said. “Given the regime change underway, I think people are going to give them some slack.”

Boeing’s defence division has recently won some huge contracts. It is lined up to provide Apache helicopters to foreign governments, sell 50 F-15 fighter jets to Israel as the bulk of a $20 billion deal, and build prototype surveillance planes for the Air Force under a $2.56 billion contract.

“Those are some strong tailwinds, but it’s going to take a while before they get (Boeing’s defence and space business) back to profitability,” Mr. Aboulafia said.



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Sunita and Barry will be on the ISS longer than expected. What next? https://artifexnews.net/article68545405-ece/ Wed, 21 Aug 2024 00:00:00 +0000 https://artifexnews.net/article68545405-ece/ Read More “Sunita and Barry will be on the ISS longer than expected. What next?” »

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Barry Wilmore and Sunita Williams’s job was simple when they took off to the International Space Station (ISS) on June 5. They were to test-fly the Boeing Starliner crew capsule for the first time with a human crew, assess its performance (including its manual controls), dock with the ISS, and return to the earth in about a week.

But what was supposed to be a straightforward eight-day mission has since turned into an eight-month opera, with NASA now indicating the two astronauts will return only in 2025. Starliner’s helium leak and malfunctioning thrusters have caused this delay. While Boeing remains optimistic, it doesn’t look like the duo will return to the earth onboard Starliner..

ISS’s current occupants

Nine crew members are currently aboard the ISS as part of Expedition 71: Williams, Wilmore, Oleg Kononenko, Nikolai Chub, Tracy Caldwell-Dyson, Matthew Dominick, Michael Barratt, Jeanette Epps, and Alexander Grebenkin.

Kononenko and Chub arrived at the ISS onboard the Soyuz MS-24 spacecraft as part of Expedition 70 and stayed on for Expedition 71. Caldwell-Dyson joined the ISS crew on March 25 this year, aboard Soyuz MS-25. All three are scheduled to return on September 24 onboard Soyuz MS-25.

Expedition 71 flight engineer Jeanette Epps extracts DNA samples from bacteria colonies for genomic analysis onboard the ISS’s Harmony module. The research work may help researchers understand how bacteria adapts to weightlessness and develop ways to protect space crews and humans on the earth.

Expedition 71 flight engineer Jeanette Epps extracts DNA samples from bacteria colonies for genomic analysis onboard the ISS’s Harmony module. The research work may help researchers understand how bacteria adapts to weightlessness and develop ways to protect space crews and humans on the earth.
| Photo Credit:
NASA

Dominick, Barratt, Epps, and Grebenkin arrived at the ISS as part of the SpaceX Crew-8 onboard the Dragon Endeavour on March 5, to join Expedition 71. They are also set to return to Earth in September 2024 using the same craft.

As Expedition 71 prepares for its return journey, its crew will hand over the space station to the members of Expedition 72, which will begin on September 24 with a seven-member crew.

Williams and Wilmore should have left the ISS before Expedition 72 began. Thanks to Starliner’s malfunctioning thrusters, they are currently extending their stay at the ISS.

Supplies to the station

Plenty of food and other supplies are available on the ISS. They were recently restocked, too. On August 14, the Progress MS-28 (a.k.a. Progress 89P) cargo resupply ship launched from the Baikonur Cosmodrome in Kazakhstan carrying about three tonnes of food, clothing, fuel, medical and hygiene supplies, and scientific equipment to the space station. This included 950 kg of propellant, 420 kg of water, and 50 kg of nitrogen to replenish the station’s atmosphere.

Almost 50% of the oxygen from exhaled carbon dioxide is recycled. More oxygen is produced by splitting water into hydrogen and oxygen using electricity generated by solar panels. The main challenge is the smell: body odour can linger in the confined space of the station, making the air unbreathable. To address this, nitrogen from the earth is mixed with the oxygen produced in the station to create fresh air.

A week earlier, on August 4, the Cygnus NG-21 American cargo spacecraft had delivered 3.8 tonnes of cargo and supplies to the ISS, including 1,021 kg of crew supplies (such as food and clothing), 1,220 kg of research equipment, 43 kg of spacewalk equipment, 1,560 kg of hardware for ISS repair and maintenance, and 13 kg of computer resources.

With these replenishments, there is no shortage of essential items such as food, water, oxygen, and other supplies to meet the additional demands.

What the astronauts wear

The space station doesn’t have laundry. In its 22º to 25º C conditions, the astronauts don’t sweat much either and there is hardly any dust. As a result, clothes don’t become dirty even if worn for weeks.

The crew changes exercise gear weekly. Inner clothing is worn once every few days, and shirts, tops, pants, and trousers are worn for weeks. Discarded clothing is stored in a cargo ship along with other refuse generated on the station. When a new resupply ship arrives, the old cargo ship is detached and re-enters the earth’s atmosphere, where it safely burns up.

With two resupply ships docking with the ISS in just weeks, NASA will surely have sent the necessary replacement articles of clothing for Willians and Wilmore.

Jostling for space

The ISS is as big as a six-bedroom villa yet is equipped with only seven permanent sleeping pods. When extra members arrive, there are not enough beds for everyone.

This is not a new problem: there are often more astronauts than bedrooms. In 2009, a record number of 13 members lived on the station. Any surface on the space station — whether a floor, wall or ceiling — is suitable to roll out a sleeping bag. It just has to be fastened to the surface to prevent it from drifting around.

The space station also has three commodes to meet the needs of an 11-member crew. There are no showers and members do not bathe. Water does not rain down in space from the shower; it hovers as droplets. Instead, the crew uses special wipes to sponge the body and keep it clean.

When the crew is at full capacity, exercise schedules become harder to plan. Each astronaut must adhere to a specific exercise regimen to counter muscle and bone loss in orbit. Mission controllers carefully allocate exercise time for each resident.

Welcome to overstay

Expedition 70 flight engineers Loral O’Hara (centre) and Jasmin Moghbeli (lower right), both from NASA, are pictured tethered to the ISS’s port truss structure during a spacewalk to replace one of the 12 trundle bearing assemblies on the port solar alpha rotary joint, which allows the arrays to track the Sun and generate electricity.

Expedition 70 flight engineers Loral O’Hara (centre) and Jasmin Moghbeli (lower right), both from NASA, are pictured tethered to the ISS’s port truss structure during a spacewalk to replace one of the 12 trundle bearing assemblies on the port solar alpha rotary joint, which allows the arrays to track the Sun and generate electricity.
| Photo Credit:
NASA

This isn’t the first time crew members have lingered in the ISS beyond the plan. Minor glitches like in the weather can delay the return of spacecraft, extending the stay for days — as can technical issues.

In 1979, Cosmonauts Vladimir Lyakhov and Valery Ryumin had to extend their stay from 108 to 175 days in the Soviet space station Salyut when the ship carrying a replacement crew hit a snag. The replacement crew landed safely back down. Fearing the Soyuz spacecraft that took them to the Salyut station might also be faulty, ground controllers called it back empty. Another uncrewed capsule was launched later to retrieve them.

The case of Sergei Krikalev and Alexander Volkov was curious. Krikalev, riding on the Soyuz TM-12, launched on May 19, 1991, and reached Mir station. Volkov joined him in October 1991, ferried by Soyuz TM-13. They both opted to stay back and supervise the Mir space station when its remaining crew returned to the earth. But in the meantime, the Soviet Union was plunged into political chaos and was dissolved on December 26. The duo thus went to space as Soviet citizens and returned on March 25, 1992, as Russian citizens. Krikalev ended up being in space for 311 consecutive days, twice the duration of his original mission.

Following the Columbia tragedy in 2003 that killed seven astronauts, cosmonaut Nikolai Budarin and U.S. astronauts Ken Bowerso and Don Pettit were marooned in ISS. They had to wait two months before an uncrewed replacement Soyuz spacecraft brought them home in May 2003.

A small space rock hit the Soyuz spacecraft that took U.S. astronaut Frank Rubio and cosmonauts Sergey Prokopyev and Dmitri Petelin to the ISS in 2022. The coolant tank developed a puncture and gas leaked out, rendering the craft inoperable. They had to spend 371 days in space instead of the planned 188. A replacement Soyuz craft was sent swiftly, but they remained onboard the ISS until 2023 for operational reasons.

The back-up plan

In the event the Starliner is deemed unfit for the return journey, NASA has a backup plan: the Crew 9 Dragon team, consisting of four members, will replace the current crew. The SpaceX Crew 9 mission is scheduled for launch in September 2024 and return in February 2025.

If Starliner is not fit by then, NASA also plans to ground two crews and launch only a two-member team. Williams and Wilmore will be inducted as the official crew of Expedition 72. During the return journey, they will join Crew 9 Dragon and occupy the two vacant seats.

T.V. Venkateswaran is a science communicator and visiting faculty member at the Indian Institute of Science Education and Research, Mohali.



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