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Space
Did this Mars rock once lie along an ancient lakeshore?
NASA's Perseverance rover sampled an unusual Mars rock called Bunsen Peak. It is rich in carbonate and silica and likely came from an ancient lakeshore beach.
April 15, 2024
Space
Webb telescope peers into young planetary systems
NASA's Webb space telescope looked for baby planets in the protoplanetary disks in 3 young planetary systems. It didn't find any, and scientists explain why.
April 15, 2024
Astronomy Essentials
Tonight
Visible planets and night sky guide for April
Visible planets and star guide for April 2024. The moon reaches 1st quarter today. In the evening of April 15, it's near Pollux and Castor.
April 15, 2024
Brightest Stars
Sun
Sun news April 15: Solar activity surge?, high number of sunspot regions and filaments
April 15, 2024, sun news. The sun is covered in sunspots, filaments, and prominences as flaring activity is on the rise. Will we see a surge?
April 15, 2024
Today's Image
Total solar eclipse pics and video from the EarthSky community
Check out these wonderful total solar eclipse pics and video from our EarthSky community! See our editor's picks that capture the partial and total phases.
April 14, 2024
Earth
Death Valley is in bloom, temporary lake still there
The heavy rains in Death Valley National Park over the past 6 months created a temporary lake and now a profusion of wildflowers.
April 14, 2024
Space
Enceladus hosting cell-sized particles, a hint of life?
A new study of Cassini data has revealed bacteria-sized particles in the plumes of Saturn's ocean moon Enceladus. Could they be evidence of microbial life?
April 14, 2024
Tonight
Use the Big Dipper to find the Little Dipper
Polaris marks the end of the handle of the Little Dipper. The 2 outer stars in the bowl of the Big Dipper point to Polaris and help you find the Little Dipper.
April 14, 2024
Earth
Sun
Monday’s total solar eclipse from space
Earth-observing satellites captured imagery of the Moon’s shadow as it raced eastward over North America on the April 8, 2024 total solar eclipse.
April 12, 2024
Space
Asteroid Apophis to sweep close 5 years from tomorrow
Five years from now, on April 13, 2029, the asteroid Apophis will zoom safely past the Earth. This much-anticipated event is a "must-see" for all.
April 12, 2024
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