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Houston, we have a problem ... with the toilet

After a successful trip around the moon, everything has been going smoothly on the Orion spacecraft's journey back to Earth—except for the $23 million toilet, which has gotten clogged.

After milestone-rich lunar flyby, astronauts start trip home

The Artemis II astronauts wrapped up their lunar flyby as they continue their journey back to Earth on Tuesday, bringing with them rich celestial observations including little-known lunar craters, a solar eclipse and meteor ...

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Space Exploration
Artemis astronauts glimpse moon's 'Grand Canyon' ahead of historic lunar flyby
Space Exploration
Artemis II toilet acts up again as astronauts speed toward the moon to break Apollo 13's record
Space Exploration
It's time for Artemis II to break Apollo 13's distance record. What to know about the moon flyby
Space Exploration
Artemis astronauts begin fifth day on historic moon mission
Space Exploration
Artemis astronauts to study the moon's surface using mainly their eyes
Space Exploration
Artemis astronauts more than halfway to Moon, putting Earth in rearview
Space Exploration
Artemis II's moonbound astronauts capture Earth's brilliant blue beauty as they leave it behind
Space Exploration
58 tortillas, five hot sauces and one toilet: life aboard spacecraft Orion
Space Exploration
Artemis mission shares office space—and physics—with Apollo
Space Exploration
NASA's water-hunting tool will help scout moon's South Pole
Space Exploration
Canadian astronaut describes 'phenomenal' Artemis journey
Space Exploration
Artemis II astronauts rocket toward the moon after spending a day around Earth
Space Exploration
Artemis II's moon-bound astronauts capture Earth's brilliant blue beauty as they leave it behind
Space Exploration
Artemis II to test new models that predict solar particle storms up to a day ahead
Space Exploration
Artemis II's moonbound toilet is working again to astronauts' relief after overnight fix
Space Exploration
NASA's Artemis II mission launches on first crewed lunar flyby in 50 years
Space Exploration
The unseen challenges of life on the moon
Space Exploration
Artemis astronauts await green light for lunar orbit
Space Exploration
Europe to negotiate with NASA on lunar missions: ESA
Astronomy
Unexplained sky flashes from the 1950s: Independent analysis supports their existence

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Single-shot imaging captures more information about ultrafast microscopic processes than previously possible
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Soft Matter
New AI method flags fluid flow tipping points before simulations break down
Astronomy
What if dark matter came in two states?
Molecular & Computational biology
One DNA letter can trigger complete sex reversal
Ecology
Soundscapes from nearby forests are more uplifting than those from faraway places, research suggests
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The lengths male octopuses go to protect the arm they need to mate
General Physics
Physicists zero in on the mass of the fundamental W boson particle
Archaeology
Unique double baptistery and mysterious marble block uncovered at Byzantine cathedral in Israel
Cell & Microbiology
AI uncovers hidden immune defenses inside bacteria
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Ecuador study finds tropical rainforest biodiversity rebounds over 90% in 30 years
Earth Sciences
AMOC collapse could turn Southern Ocean into carbon source, adding 0.2°C to global warming
General Physics
AI trained like a Rubik's Cube solver simplifies particle physics equations
Bio & Medicine
Sound-sensing hair bundles in our ears act as tiny thermodynamic machines
Archaeology
DNA evidence reveals a Stone Age population collapse in France
Cell & Microbiology
A 'stemness checkpoint' helps control stem cell identity
Environment
Satellites capture the volatile human–luminescence relationship
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Uncharted island will soon appear on nautical charts
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New crew set to launch for ISS after medical evacuation

Four astronauts could blast off to the International Space Station (ISS) next week, after setbacks including a mysterious medical evacuation of the previous crew, last-minute rocket problems, and some scheduling conflicts ...

Launching the idea of data centers in space

Tech firms are floating the idea of building data centers in space and tapping into the sun's energy to meet out-of-this-world power demands in a fierce artificial intelligence race.

What's the point of a space station around the moon?

The Lunar Gateway is a planned space station that will orbit the moon. It is part of the NASA‑led Artemis program. Artemis aims to return humans to the moon, establishing a sustainable presence there for scientific and commercial ...

Reproduction in space, an environment hostile to human biology

As commercial spaceflight draws ever closer and time spent in space continues to extend, the question of reproductive health beyond the bounds of planet Earth is no longer theoretical but now "urgently practical," according ...

SpaceX grounds Falcon 9 missions, could impact ISS launch

NASA said Tuesday its next crew rotation to the International Space Station could be delayed after SpaceX announced it was grounding flights of its Falcon 9 rocket to investigate an unspecified issue.