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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
Lenticular cloud over Mt. Rainier
Gary Peltz in Seattle caught this spectacular image of a lenticular cloud over Mt. Rainier on October 14, 2017.
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
Keep watching moon, Venus, Mars
The best views of the moon and planets before dawn are happening now!
October 16, 2017
Egg-shaped Haumea has a ring
Dwarf planet Haumea - which orbits our sun in Pluto's realm of the solar system - has become the first trans-Neptunian object known to be encircled by a ring.
October 16, 2017
Big Dipper over Horseshoe Spring, Utah
The famous Big Dipper asterism, caught mirrored in Horseshoe Spring, one of many natural hot springs in Utah’s West Desert.
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
Northern lights over Alberta, Canada
Enjoy this night sky video timelapse by Jack Fusco featuring frozen lakes, fog inversions, and of course the northern lights!
October 15, 2017
