international space station Archives

April 13, 2023April 13, 2023 by Matt Williams

What Can Be Done to Help Astronaut Vision in Space?

Astronauts Kate Rubins (left) and Jeff Williams (right) looking out of the ISS' cupola at a SpaceX Dragon supply spacecraft. Until recently, the effects of long-duration missions on eyesight was something of a mystery. Credit: NASA

Spaceflight takes a serious toll on the human body. As NASA’s Twin Study demonstrates, long-duration stays in space lead to muscle and bone density loss. There are also notable effects on the cardiovascular, central nervous, and endocrine systems, as well as changes in gene expression and cognitive function. There’s also visual impairment, known as Spaceflight-Associated Neuro-ocular Syndrome (SANS), which many astronauts reported after spending two months aboard the International Space Station (ISS). This results from increased intracranial pressure that places stress on the optic nerve and leads to temporary blindness.

Researchers are looking for ways to diagnose and treat these issues to prepare for future missions that will involve long-duration stays beyond Earth and transits in deep space. A cross-disciplinary team of researchers led by the University of Western Australia (UWA) has developed a breakthrough method for measuring brain fluid pressure that could reduce the risk of SANS for astronauts on long-duration spaceflights. This research could have applications for the many efforts to create a human presence on the Moon in this decade and crewed missions to Mars in the next.

February 15, 2023February 15, 2023 by Matt Williams

Another Russian Spacecraft is Leaking Coolant

The Soyuz MS-22 crew ship approaches the space station above the Mediterranean Sea with three new crew members for a docking to the Rassvet module. Credit: NASA

Roscosmos appears to be having some issues with a spacecraft again. In December, the Soyuz MS-22 spacecraft that delivered three crewmembers of Expedition 68 to the International Space Station (ISS) reported a leak in its coolant loop. On February 11th, engineers at the Russian Mission Control Center outside Moscow recorded a depressurization in Progress 82, an uncrewed cargo craft docked with the Poisk laboratory module. The cause of these leaks remains unknown, but Roscosmos engineers (with support from their NASA counterparts) will continue investigating.

November 8, 2022November 8, 2022 by Matt Williams

China Launches Mengtian, the Last Major Module to its Space Station

Artist's rendering of the completed Tiangong space station. Credit: Shujianyang/Wikimedia

On the afternoon of Monday, October 31st, 2022 (Halloween!), China launched the Mengtian laboratory cabin module into space, where it will join the Tiangong modular space station. This module, whose name translates to “Dreaming of the Heavens,” is the second laboratory and final addition to Tiangong (“Palace in the Sky”). This successful launch places China one step closer to completing its first long-term space station, roughly one-fifth the mass of the International Space Station (ISS) and comparable in size to Russia’s decommissioned Mir space station.

October 26, 2022October 28, 2022 by Matt Williams

Clearing the Air on a Trip to Mars: the NASA Particle Partition Challenge!

NASA is seeking innovative ideas for its Particle Partition Challenge. Credit: NASA/HeroX

In the coming decade, NASA and the China National Space Agency (CNSA) will send the first astronaut crews to Mars. Unlike missions to the International Space Station (ISS) or the Moon, crewed missions to Mars present several unique challenges because of the distance and transit times involved. For instance, it is only practical to send missions to Mars when our two planets are closest to each other in their orbits (known as “Opposition“), which occurs every 26 months. Even then, it can take up to nine months for spacecraft to reach Mars, creating all kinds of logistics headaches.

On top of that, there’s the need for life support systems that will maintain a breathable atmosphere inside the spacecraft. Like the system that allows astronauts to live aboard the ISS for extended periods, methods are needed to scrub waste carbon from the air and safely sequester it. HeroX, the world’s leading platform for crowdsourced solutions, has launched the NASA Particle Partition Challenge. With a total prize purse of $45,000, this competition is looking for innovative ideas on how to ensure that astronauts can breathe comfortably on the way to Mars!

September 22, 2022September 22, 2022 by Alan Boyle

Axiom’s Next Trip to the ISS Will Carry the First Saudi Woman in Space

Illustration: SpaceX Crew Dragon at ISS — An illustration shows SpaceX's Crew Dragon capsule approaching the International Space Station. (Credit: SpaceX)

Axiom Space says it’s working with the Saudi Space Commission to send two spacefliers from the Arab kingdom, including the first Saudi woman to go into orbit, to the International Space Station as early as next year.

The inclusion of a female astronaut is particularly notable for Saudi Arabia — where women were forbidden to drive motor vehicles until 2018, and where the status of women is still a controversial subject.

September 12, 2022September 12, 2022 by Matt Williams

Want to Stay Healthy in Space? Then you Want Artificial Gravity

A close up of three fruit flies, used for scientific research both on Earth and in space. Credits: NASA Ames Research Center/Dominic Hart

Space travel presents numerous challenges, not the least of which have to do with astronaut health and safety. And the farther these missions venture from Earth, the more significant they become. Beyond Earth’s protective atmosphere and magnetosphere, there’s the threat of long-term exposure to solar and cosmic radiation. But whereas radiation exposure can be mitigated with proper shielding, there are few strategies available for dealing with the other major hazard: long-term exposure to microgravity.

Aboard the International Space Station (ISS), astronauts rely on a strict regimen of exercise and resistance training to mitigate the physiological effects. These include muscle atrophy, bone density loss, organ function, eyesight, and effects on cardiovascular health, gene expression, and the central nervous system. But as a recent NASA study revealed, long-duration missions to Mars and other locations in deep space will need to be equipped with artificial gravity. This study examined the effects of microgravity on fruit flies aboard the ISS and demonstrated artificial gravity provides partial protection against those changes.

July 8, 2022July 8, 2022 by Matt Williams

Many Astronauts Never Recover all of their Bone Density after Returning to Earth

In his book, Endurance, astronaut Scott Kelly described the arduous task of readjusting to life on Earth after spending a year in space. As part of NASA’s Twins Study, Kelly lived and worked aboard the International Space Station (ISS) while his identical twin (astronaut Mark Kelly) remained on Earth. While the results of this study revealed how prolonged exposure to microgravity could lead to all manner of physiological changes, the long and painful recovery Kelly described in his book painted a much more personal and candid picture.

As it turns out, astronauts who spend extended periods in space may never fully recover. At least, that is the conclusion reached by an international team led by the University of Calgary after they assessed the bone strength of multiple astronauts before and after they went to space. They found that after twelve months of recovery, the astronaut’s bones had not regenerated completely. These findings could have significant implications for proposed future missions, many of which involve long-duration stays in space, on the Moon, and Mars.

May 2, 2022May 2, 2022 by Nancy Atkinson

Watch What Happens to Astronauts When the International Space Station Gets an Orbital Reboost

Astronauts on the International Space Station experience an orbital reboost. Credit: NASA/ESA

This is reminiscent of going down slide on the playground – and then immediately getting back in line to go down again. Except in space.

Here’s what it looks like on board the International Space Station when thrusters fire for an orbital reboost. While it seems like the astronauts are moving inside the station, in in reality it is the Space Station that is moving around them. And in actuality, the acceleration doesn’t happen this fast – the video is sped up eight times. But it still looks like fun!

April 25, 2022April 25, 2022 by Alan Boyle

Axiom’s First Astronauts Return From International Space Station

Dragon splashdown with parachutes — SpaceX's Crew Dragon Endeavour splashes down in the Atlantic Ocean, bringing Axiom Space's first crew of private astronauts back from the International Space Station. (SpaceX Photo)

Axiom Space’s first crew of private astronauts is back on Earth after a 17-day orbital trip that included a week of bonus time on the International Space Station. The mission ended at 1:06 p.m. ET (5:06 p.m. GMT) today when SpaceX’s Crew Dragon Endeavour splashed down in the Atlantic Ocean off the coast of Florida.

Former NASA astronaut Michael Lopez-Alegria was the commander for the homeward trip, accompanied by three investors who each paid Axiom $55 million for their rides: Ohio real-estate and tech entrepreneur Larry Connor, who served as the mission pilot, plus Canada’s Mark Pathy and Israel’s Eytan Stibbe.

“Welcome back to planet Earth,” SpaceX’s mission control operator Sarah Gillis told the crew. “The Axiom-1 mission marks the beginning of a new paradigm for human spaceflight. We hope you enjoyed the extra few days in space.”

Axiom-1 began on April 8 with the Florida launch of a SpaceX Falcon 9 rocket. The trip was originally supposed to last about 10 days, but concerns about weather in the splashdown zone delayed the descent. Because of the way their fares were structured, Axiom’s customers didn’t have to pay extra for the extension.

April 8, 2022April 8, 2022 by Matt Williams

The Four Private Axiom Astronauts are off to the International Space Station

The Ax-1 crew aboard the Dragon Endeavor spacecraft. Credit: SpaceX

This morning, at 11:17 AM EDT (08:17 AM PDT), the first all-private astronaut mission to the International Space Station (ISS) lifted off from Launch Complex 39A at NASA Kennedy Space Center in Florida. Designated Axiom Mission 1 (Ax-1), this mission consists of four commercial astronauts flying aboard the SpaceX Dragon Endeavour spacecraft that launched atop a SpaceX Falcon 9 rocket. The launch was live-streamed via NASA’s official Youtube channel (you can catch the replay here).