Alien pathogens or invasive species could hitch a ride on a spacecraft and invade our planet

If we don't watch out, alien microbes could invade Earth, or Earth microbes might crawl on an alien world

By Elizabeth Rayne 3 hours ago

Could the methane Enceladus spews into space mean aliens are lurking beneath the ice?

By Elizabeth Rayne 4 months ago

Mars 'copter Ingenuity still flying high, spots hazards for the Perseverance rover

By Phil Plait 4 months ago

What is now the closest known black hole to Earth is a real unicorn

By Elizabeth Rayne 6 months ago

Astrobiologist suggests seeking out dead worlds for life reseeding efforts

By Jeff Spry 7 months ago

Deep sea bacteria spurn the Sun, instead using Earth's internal heat for photosynthesis

By Phil Plait 8 months ago

See the first *incredible* images from the NASA rover Perseverance on Mars!

By Phil Plait 8 months ago

Incredible microscope images of molecules show what Titan's haze looks like up *very* close

By Phil Plait 9 months ago

Supernovas that happened in galaxies far, far away have left the most bizarre evidence on Earth

By Elizabeth Rayne 12 months ago

UPDATE: Life above hell? Serious doubt cast on Venus phosphine finding

By Phil Plait 1 year ago