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Smokey sunset skies over Italy
These swirling, intense red sunset skies are due to ongoing wildfires in northern Italy.
October 30, 2017
What is dark matter?
Cosmologists are heading back to their chalkboards, as experiments designed to figure out the nature of dark matter come up empty.
October 30, 2017
Mojave Forsaken: Ghost towns and dark skies
Let the creepiness begin! Just in time for Halloween, a new video from ProjectSkyGlow depicting spooky California ghost towns under the darkest of dark night skies.
October 30, 2017
Moon in Aquarius, near Neptune
Find the zodiacal constellation Aquarius. The moon will be there, too. Neptune can't be seen in the moon's glare, but it's fun to imagine!
October 30, 2017
Small object visits from beyond solar system
This small asteroid (or comet) passed under Earth's orbit on October 14 at about 60 times the moon's distance. Now it appears to be heading toward interstellar space again.
October 29, 2017
How do human genes act in space?
"Looking at gene expression ... we really see an explosion, like fireworks taking off, as soon as the human body gets into space."
October 29, 2017
Photos: Observe the Moon Night
Saturday night is International Observe the Moon Night, and EarthSky community members from around the world sent photos, reminding us that we all see the same moon.
October 28, 2017
Did Ceres once have an ocean?
Two recent studies explore the possibility of an ancient ocean on dwarf planet Ceres, largest world in the asteroid belt. If it existed, what happened to it? And could Ceres still have liquid water today?
October 28, 2017
A potential human habitat on the moon?
A new study says a hole in the moon’s Marius Hills region is the skylight of an underground lava tube large enough to house a city.
October 27, 2017
Star trails over Smiths Falls
Fiona M. Donnelly captured this image on October 21. 2017, in Smiths Falls, Ontario. She wrote, "Our Earth's rotation during a one-hour period."
October 27, 2017
