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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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Soft Matter
New AI method flags fluid flow tipping points before simulations break down
Molecular & Computational biology
One DNA letter can trigger complete sex reversal
Astronomy
What if dark matter came in two states?
Ecology
Soundscapes from nearby forests are more uplifting than those from faraway places, research suggests
Plants & Animals
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
Plants & Animals
Ecuador study finds tropical rainforest biodiversity rebounds over 90% in 30 years
Archaeology
Unique double baptistery and mysterious marble block uncovered at Byzantine cathedral in Israel
Earth Sciences
AMOC collapse could turn Southern Ocean into carbon source, adding 0.2°C to global warming
Cell & Microbiology
AI uncovers hidden immune defenses inside bacteria
Bio & Medicine
Sound-sensing hair bundles in our ears act as tiny thermodynamic machines
General Physics
AI trained like a Rubik's Cube solver simplifies particle physics equations
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
Earth Sciences
Uncharted island will soon appear on nautical charts
Earth Sciences
Summer is getting longer, and it's happening faster than we thought
Nanophysics
Momentum-engineered photonic states make bulk silicon shine
Archaeology
Ancient architecture shows public opinion influenced Maya divine kings
Molecular & Computational biology
Mathematical model predicts fish freshness in real time

What time is it on Mars? Physicists have the answer.

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, built with atomic clocks, GPS satellites and high-speed telecommunications networks.

High-resolution radar satellites launched for Greece

Thanks to the Recovery and Resilience Facility, and through collaboration between the Greek government, the private satellite company ICEYE and the European Space Agency (ESA), two new high-resolution radar satellites have ...

Russian cosmodrome damaged after joint launch with US

Russia's space launch site in Kazakhstan was damaged on Thursday after a Soyuz mission took off with Russian cosmonauts and US astronauts onboard, Moscow's space agency Roscosmos said.