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Stars that gobble up planets could narrow the search for other Earths
About a quarter of sun-like stars have likely snacked on a rocky planet.
Enjoy breathing oxygen? Thank the moon.
The air we breathe may be the result of a chance collaboration between microbes and the moon.
What if the speed of Earth’s rotation suddenly got faster?
Even a 1 mile per hour speed boost would make things pretty weird.
Narwhal tusks are full of illuminating secrets
The giant teeth can reveal clues about pollutants in the Narwhal's diet.
Some of Earth’s tiniest living things could survive on Mars
Bacteria and fungi were hurled into Earth’s middle stratosphere, which resembles many of Mars’ harsh conditions.
Your ancestors might have been Martians
A controversial theory suggests that life could pre-date Earth.
It’s a cosmic miracle that life on Earth’s lasted this long
Exactly how lucky did we get?
Use Google Earth and Street View to explore the planet from your couch
You don’t need to spend a ton of money to travel to remote locations.
New 3D moon models show it might hold up to 15,000 miles of frozen water
Frozen water could be hiding in dark shadowy pockets scattered across the moon.
Clumps of bacteria could spread life between planets
A unique trick could let microbes zip from Earth to Mars, for example, and survive the trek.
