Earth's early air weighed half as much as it does today
The findings could force us to rethink how our planet developed.
ICYMI: Fire-starting drone, Stanford bird studies and more
In case the handgun drone wasn’t enough for you.
ICYMI: Underwater robot snake, Earth's ocean saving and more
Dying ecosystems might get help from currents after all.
NASA gives away the data from an Earth-mapping spacecraft
You can get all of ASTER's info for free.
ICYMI: Space junk reboot, biological machine v2 and more
The biobots can now respond to visual cues and use energy from their own muscles.
Neil deGrasse-Tyson blesses a flat-earth rap diss
The astrophysicist's nephew raps 'Flat-to-Fact' as a response to flat-earth believer B.o.B.
2015 was the hottest year on record
Earth's temperatures were higher than they've ever been.
Watch 58 years of space debris appear in 1 minute
If you want to know why space junk is a problem, this video will answer your questions.
Lunar Orbiter captures the Earth rising from the moon's horizon
You'll never see this sight from our planet.