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Could 2 NASA Astronauts Be Stuck At The Space Station Until Next Year? Here’s What To Know

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CAPE CANAVERAL, Florida – NASA is debating how and when to bring two astronauts home from the International Space Station after repeatedly postponing their homecoming aboard Boeing’s problematic capsule.

Do they take a gamble and send them home soon aboard Boeing’s Starliner? Or should they wait and return next year with SpaceX?

Butch Wilmore and Suni Williams have been up there since early June, with their intended eight-day mission already two months in and potentially longer.

Testing continues, with Boeing claiming confidence in their spacecraft and NASA divided. The ruling is due next week.

WHAT’S WRONG WITH THE BOEING STARLINER?
This is Boeing’s first experience launching people, following a pair of empty Starliners with software and other concerns. Even before Wilmore and Williams blasted off on June 5, their capsule developed a leak in the propulsion system. Boeing and NASA determined that the little helium leak was stable and isolated and proceeded with the test flight. However, as the Starliner approached the space station the following day, four more leaks occurred, and five thrusters also failed.

The capsule docked safely, and four of the thrusters eventually worked. Engineers hurried to conduct thruster test firings on the ground and in space. After two months, there is still no clear cause for the thruster faults. All but one of the 28 thrusters appear to be in working order, but the crew’s safety may be jeopardized if too many fail to function again. At the end of the trip, the thrusters are needed to hold the capsule in the proper position for the vital deorbit burn.

Could 2 NASA Astronauts Be Stuck At The Space Station Until Next Year? Here’s What To Know

ARE THE TWO ASTRONAUTS STRANDED?
NASA rejects claims that Wilmore and Williams are stranded or stuck. From the start, NASA has highlighted that if there is an emergency aboard the space station, such as a fire or decompression, the couple can still use Starliner as a lifeboat to escape. A former NASA leader said Thursday that the astronauts are “kind of stuck,” but not stranded. Scott Hubbard confirmed that they are secure aboard the space station, with plenty of supplies and jobs to do.

If NASA proceeded with a SpaceX return, Starliner would be released first, freeing up one of two parking slots for US capsules. Before that, Wilmore and Williams would create seats for themselves in the SpaceX Dragon capsule, which is now docked at the space station. This is because each station tenant requires a lifeboat at all times. Once the docking port on the Starliner is vacant, SpaceX might launch another Dragon to fill it — the one Wilmore and Williams would ride.

WHY MAY THEY HAVE TO WAIT UNTIL NEXT YEAR?

SpaceX’s Dragon, like Boeing’s Starliner, is designed to carry four people. To make place for Wilmore and Williams, NASA announced Wednesday that it may push two of the four astronauts scheduled to sail to the space station with SpaceX next month. The empty seats would be designated for Wilmore and Williams, but they would have to stay until February.

This is because station missions are designed to last at least six months. Some have lasted for a year. Two Russians are now in space and will return in September in a three-seat Soyuz capsule with a NASA crewmate to complete a yearlong mission. There is no thought of ordering a special SpaceX Express, and the Dragon at the station will now transport four inhabitants home next month.

This isn’t the first time a US astronaut has had their mission extended. NASA astronaut Frank Rubio and his two Russian crewmates spent a little over a year in space after their parked Soyuz capsule was damaged by space debris and leaked all of its coolant. Last September, an empty Russian capsule was launched to bring them back.

What are the astronauts’ thoughts on all of this?

Wilmore and Williams are retired Navy captains and NASA astronauts with extensive space station experience. Wilmore, 61, and Williams, 58, stated before the test flight that they planned to learn much about the Starliner and its operation.

At their only news conference from space in July, they told reporters that they were keeping busy with repairs and research and that they were confident in all of the Starliner testing that was taking place behind the scenes. There has yet to be any public announcement from them regarding the possibility of an eight-month stay.

Is there enough food, water, and air?
Wilmore and Williams’ luggage was removed from Starliner before liftoff to make place for equipment required for the space station’s urine-to-drinking-water recycling system. So they made do with the clothes they already had up there. A supply ship arrived this week, bringing their clothes and more food and science experiments for the full nine-person crew.

More supplies are expected in a few months. Regarding air, the space station has its own oxygen-generating devices. Despite the fat stores, NASA wants to return to normal quickly. Aside from Wilmore and Williams, four other Americans and three Russians are on board.

WHY DOES NASA STICK WITH STARLINER?
NASA hired two businesses to transport its people to and from the space station, just as it did to carry goods. The space agency viewed it as an insurance policy: if one crew or cargo provider was grounded, the other could carry the burden. ‘You want another option, both in terms of cost and safety. So NASA needs Boeing to succeed,” said Hubbard, who served on the Columbia Accident Investigation Board in 2003.

Despite the new difficulties, NASA insists on continuing to use Boeing Starliners for astronaut rides. The plan is to send up one Dragon and one Starliner per year with crews six months apart until the station is abandoned in 2030. SpaceX has been doing this since 2020.

WHAT IS BOEING SAYING?

Could 2 NASA Astronauts Be Stuck At The Space Station Until Next Year? Here’s What To Know

Boeing claims that its capsule can still safely transport the astronauts home. However, the corporation stated on Wednesday that it would take the required preparations to return the capsule empty if NASA so directed. Last Monday, the corporation issued a list of all the thruster experiments performed since launch.

“We still believe in Starliner’s capability and flight rationale.” the firm stated.

Boeing, a long-time space contractor, has had to deal with numerous Starliner issues over the years. The business had to launch an empty Starliner twice before committing to a crew, repeating the original flight test due to software errors and other challenges. The delays have cost the corporation over $1 billion.

Hubbard asks whether NASA and Boeing should have launched the crew with the original helium leak, which led to more.

“Whatever happens with the Starliner, they need to find out what the problem was and fix it,” he explained. “And give everybody confidence they are still in the aerospace business in a major way.”

SOURCE | AP

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NASA Cuts 2 From Next SpaceX Flight To Make Room For Astronauts Stuck At Space Station

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NASA withdrew two astronauts from the next crew on Friday to create room on the return voyage for the two stuck at the International Space Station.

NASA Cuts 2 From Next SpaceX Flight To Make Room For Astronauts Stuck At Space Station

NASA’s Nick Hague and Russian Aleksandr Gorbunov will launch the orbiting laboratory in September using a SpaceX rocket. In February, the duo will reunite with Suni Williams and Butch Wilmore. NASA felt it was too unsafe for Williams and Wilmore to return home in their Boeing Starliner spacecraft, which had propulsion issues and helium leaks.

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NASA astronauts Zena Cardman and Stephanie Wilson were bumped from their SpaceX flight. NASA stated that they could fly on future missions.

The space agency considered spaceflight experience and other considerations while choosing.

After the shuttles were retired, the United States relied on Russia to transport crews to the space station until SpaceX began carrying humans in 2020. The two countries continue to exchange seats. Next month, NASA’s Don Pettit will launch to the space station, while NASA’s Tracy Dyson will return to Earth via a Russian capsule.

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NASA Cuts 2 From Next SpaceX Flight To Make Room For Astronauts Stuck At Space Station

NASA turned to commercial enterprises a decade ago, seeking two competing US companies to transport humans in the post-shuttle era.

In June, Boeing’s first crew, Williams and Wilmore, arrived at the space station for a planned week-long stay. Their capsule will return empty as early as next Friday, aiming to land in the New Mexico desert.

SOURCE | AP

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Scientists Discover Doughnut-Shaped Structure Deep in Earth’s Outer Core

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Scientists Discover Doughnut-Shaped Structure Deep in Earth's Outer Core

In a groundbreaking study recently published in *Science Advances*, scientists have revealed an astonishing new feature within the Earth’s outer core.

Using seismic waves from large earthquakes, researchers have uncovered a doughnut-like, or torus-shaped, structure buried deep beneath the planet’s surface.

This discovery provides fresh insights into the complex dynamics of Earth’s internal composition.

The research team, led by Professor Hrvoje Tkalcic, a geophysicist from the Australian National University, analyzed seismic waves that travel through Earth’s outer core.

These waves, generated by significant seismic events, offer valuable information about the core’s structure and composition.

Professor Tkalcic explained that the team focused on the slowing down of seismic waves as they passed through a specific area of the outer core near its boundary with the mantle.

“By understanding the paths of those waves and their travel times, we reconstructed their journey through the Earth’s outer core,” Tkalcic said.

The slowdown in wave velocity indicated the presence of a torus-shaped region within the outer core, oriented parallel to the equator. This discovery adds a new layer of complexity to our understanding of Earth’s interior.

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New Study Reveals Low-Velocity Torus in Earth’s Outer Core

The study’s authors noted, “Thermochemical inhomogeneities in the outer core that enhance our understanding of the geodynamo have been elusive.

Seismic constraints on such inhomogeneities would provide clues on the amount and distribution of light elements in the core apart from iron and nickel.”

The researchers employed global coda correlation wavefield analysis to present evidence of a low-velocity volume within the outer core.

Their findings indicate that seismic waves travel more slowly in this equatorial torus compared to other regions Through waveform modeling, they determined that this torus has a velocity approximately 2% lower than the surrounding liquid outer core.

The study proposes that this low-velocity structure is likely of thermochemical origin, offering crucial insights into the dynamical processes of the Earth’s outer core.

This discovery represents a significant advancement in our understanding of planet’s internal dynamics and could have far-reaching implications for the study of geodynamics and the geodynamo.

 

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FAA Grounds SpaceX After Rocket Falls Over In Flames At Landing

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SpaceX’s launches are on hold after a booster rocket caught fire while landing on Wednesday.

Following the early morning mishap off the Florida coast, the Federal Aviation Administration suspended the company’s Falcon 9 rockets and demanded an investigation. There were no reports of injuries or public damage.

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FAA Grounds SpaceX After Rocket Falls Over In Flames At Landing

It’s too early to say how much this may affect SpaceX’s planned crew trips, one private and one for NASA. A billionaire’s chartered flight was delayed only a few hours earlier due to a poor weather forecast.

The rocket launched from Cape Canaveral Space Force Station, delivering all 21 Starlink internet satellites to orbit. However, the first-stage booster exploded in a fireball shortly after landing on an ocean platform, marking the first such disaster in years. This was SpaceX’s 23rd launch of this specific rocket, setting a recycling record.

The FAA stated that before SpaceX can resume Falcon 9 launches, it must accept its accident findings and corrective action. Following the accident, a launch from California with more Starlinks was canceled immediately.

SpaceX’s vice president, Jon Edwards, said the business is working “ASAP” to determine what went wrong.

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“The loss of a booster is always heartbreaking. Each of them has its own past and personality. “Fortunately, this does not happen very often,” Edwards wrote on X.

Aside from the private spaceflight awaiting liftoff from Florida’s Kennedy Space Centre, the compnany is scheduled to send two astronauts for NASA late next month. Two seats will be reserved for the two astronauts who launched in June aboard Boeing’s new Starliner capsule and were declared dangerous by NASA for their return.

SOURCE | AP

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