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Major 8.2-magnitude earthquake rocks Alaska
Sirens sounded across Alaska's Kodiak island last night, after an 8.2-magnitude earthquake prompted tsunami warmings.
July 29, 2021
9 weird transients from 1950 still unexplained
Astronomers in Sweden want to solve the mystery of 9 weird transients, glimpsed in a photographic plate acquired at Palomar Observatory in 1950.
July 25, 2021
Astronomy art: Voices of Apollo 11
Voices of Apollo 11 is an image of the moon, made of the words transmitted from the moon by Apollo 11 astronauts. Astronomy artist J-P Metsavainio created it.
July 19, 2021
How to spot ISS in your sky
The International Space Station has been orbiting our planet since 1998. Click here to learn how to spot ISS in your sky.
July 16, 2021
Thank you, Eleanor Imster
Say good-bye to Eleanor Imster, a fixture at EarthSky since 1995.
July 14, 2021
The billionaire space race and the Karman line
The billionaire space race ramped up at Richard Branson's successful flight to the edge of space on July 11, 2021, as 2 spaceflight companies jostled for bragging rights.
July 14, 2021
NASA’s Mission Equity: Still time to participate
NASA's Mission Equity virtual public meeting on July 13, with the goal of including underrepresented and underserved communities.
July 8, 2021
Last chance to see Manhattanhenge in 2021
New Yorkers will have their last chance in 2021 to watch for Manhattanhenge, an alignment of the sunset along city streets. Fun!
July 8, 2021
Dragon Man may be Homo sapiens’ closest relative
Scientists determined a skull found in China is a new species named Homo longi, or Dragon Man, which is the closest relative to Homo sapiens.
July 4, 2021
What causes a highway mirage?
A highway mirage is most often seen in summer, when the roadway ahead of you might be much hotter than the air above. Here's what causes it.
July 3, 2021
