A new study suggests human activity could, in theory, bring about the end of most life on Earth
Precision dating of a single rock resolves lingering uncertainties about the Red Planet’s history
For a quarter-hour today, some of us on Earth can look up and know that almost a billion miles away, above the sky, a set of robotic eyes is looking right back .
This past Monday, the planet Neptune officially got a new moon, a relatively tiny chunk of rock and ice about as wide as Manhattan is long. The object is currently dubbed S/2004 N 1, and it’s the fourteenth now known to circle that distant icy world...
A new measurement of a fundamental physical constant marks a turning point in the quest to craft a perfect temperature scale
Ultrafast, ultrabright radio pulses from sources unknown could help map intergalactic matter, but only if astronomers can figure out their origin
News of possible multiple habitable worlds around the red dwarf star Gliese 667 C may be exciting, but researchers caution that certainty about these exoplanets remains elusive