Orbital resonances reveal the Earth-size world circles its star every 19 days
A new observing campaign aims to understand a star that some have suggested might even host an alien civilization
Popular everywhere except North America, where Americans use 36.5 billion rolls of toilet paper annually, switching to bathroom bidets could save some 15 million trees
A new study has found a steady growth of moss in Antarctica over the last 50 years
Breaking from the general poleward movement of many species, flowering trees take an unexpected turn
Did an advanced civilization disappear more than 12,000 years ago?
What to expect for climate change, health care, technology and more under the new administration
Infographic of the Week
Ladybird beetle wings fold themselves into a tidy package after flight, and now scientists understand how it works.