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Watch ISS spacewalk October 20
Friday's is the last of 3 spacewalks by International Space Station astronauts this month.
October 19, 2017
Whales and dolphins live ‘human-like’ lives
They work together, talk to each other and use tools. A new study links the complexity of Cetacean culture and behavior to the size of their brains.
October 19, 2017
Traveling to Mars? Top 6 health challenges
NASA aims to have humans on Mars by the 2030s. The people making the long space journey will experience health risks they've never faced before.
October 18, 2017
More evidence for a Planet 9
No new large planet on the outskirts of our solar system has yet been discovered, although evidence is building, astronomers say. By the way, if Planet 9 does exist … it's definitely not headed our way.
October 17, 2017
Gravitational waves: What are they?
If you understand how a trampoline works, you'll be able to understand what gravitational waves are.
October 17, 2017
Gravitational waves, and more, from merging neutron stars
On Monday, LIGO and Virgo announced the 1st detection of gravitational waves produced by colliding neutron stars, and 1st observed in both gravitational waves and light. "It ushers in a new era in astronomy."
October 16, 2017
The UK had a red sun Monday
Social media was buzzing on Monday with photos and accounts of the red sun over the UK. British weather forecasters said it was dust from the Sahara, raised via Hurricane Ophelia.
October 16, 2017
Creatures raft across Pacific, thanks to tsunami
Hundreds of species hitched a ride on debris from the 2011 Japanese tsunami for a 4,400-mile journey across the Pacific Ocean.
October 15, 2017
ISS over Puget Sound, Washington
Photographer John Nelson used NASA's SpotTheStation website to learn when the International Space Station would make a high pass in his sky. This image is the result.
October 14, 2017
Asteroid to sweep close October 11-12
Asteroid 2012 TC4 is being used as a test of Earth's global asteroid defense system. How to see it online.
October 11, 2017
