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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
Penetrating the mystery of why we age
Researchers in Germany call the aging process "a quirk of evolution" and take a step forward in understanding why we didn't evolve to live forever.
October 9, 2017
How gravitational waves attracted a Nobel Prize
The 2017 Nobel prize for physics was awarded to scientists who helped pioneer the discovery of ripples in the fabric of spacetime, known as gravitational waves.
October 8, 2017
Nobel winners shed light on circadian rhythms
Three American scientists share the 2017 Nobel Prize in Physiology or Medicine for work that explained how our cells keep track of time.
October 8, 2017
Help identify Earth features in astronaut photos
Hey citizen scientists! You're invited to test a new tool to study Earth using photos taken by International Space Station astronauts. Here's how.
October 6, 2017
