Tardigrades, commonly known as water bears, may be better suited by a new name: Tardiguardians of the Galaxy. Unlike the ...

Step outside just after sunset and you may catch an unusual sight: six planets strung across the sky in a gentle arc. The ...

Nearly all of the solar system’s planets are about to file across the night sky in a planetary alignment, and it will be ...

More extreme weather and shifting growing seasons are putting pressure on school meal programs, which serve nearly half a billion children worldwide. Jennifer Burney, a professor of Earth system ...

Astronomers have discovered what appears to be an exoplanet that could be a distant Earthly paradise. Or it could be a frigid realm even chillier than Mars, incapable of supporting life. The margins ...

Picture a shiny, blackish pebble no bigger than a golf ball, lying buried beneath the scorching Egyptian sand. It’s not much to look at, right? Yet this tiny fragment has scientists across the world ...

io9 is proud to present fiction from Lightspeed Magazine. Once a month, we feature a story from Lightspeed’s current issue. This month’s selection is “Death Echoes Overlapping” by Megan Chee. Enjoy!

NASA's Perseverance rover, launched in Florida, discovered bleached rocks on Mars, providing new evidence that the planet was once wet and habitable.

A planet that may exist, and may be habitable or may be frozen, has been discovered on an Earth-like orbit around a star 146 light-years away When you purchase through links on our site, we may earn ...

Explore mind-bending revelations in "25 Astonishing Facts About The Earth That Will Confuse You." Unveil secrets from explosive lakes to the magnetic field flip, and discover the wonders shaping our ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Illustration of the Earth-like exoplanet Proxima Centauri b orbiting the star Proxima ...