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Visible planets and night sky guide for September
Marcy Curran
September 6, 2026
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Octans and Apus circle the south celestial pole
Kelly Kizer Whitt
September 6, 2026
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Cassiopeia the Queen ascends in September and October
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September 4, 2026
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Female gorillas favor moving to groups that have gal pals
Female gorillas prefer to join groups with females they had lived with in the past. They also avoided groups with males they grew up with.
Shireen Gonzaga
August 13, 2025
Venus and Jupiter conjunction. Plus meteors! See the images
Venus and Jupiter - the 2 brightest planets in Earth’s sky – were closest together for this year Monday morning. Here are the best images.
Cristina Ortiz
August 12, 2025
Meet intermediate black holes: Between stellar and massive
Intermediate-mass black holes have masses between stellar black holes and supermassive black holes. They are rare and hard to detect.
EarthSky Voices
August 12, 2025
Thuban was the North Star for the ancient Egyptians
The North Star changes over time. Thuban was the Pole Star some 5,000 years ago, when the Egyptians were building the pyramids.
Bruce McClure
Deborah Byrd
August 12, 2025
Why flash floods in the U.S. have been extreme in 2025
Parts of the United States have seen extreme flash floods in 2025. Get the reasons why from a scientist who studies extreme precipitation events.
EarthSky Voices
August 10, 2025
Did alcohol and evolution go hand in hand for humanity?
Alcohol and evolution: Eating alcohol-laden fruit might have helped early hominids socialize. Later, did making alcohol drive the rise of agriculture?
Dave Adalian
August 10, 2025
Analyzing binary stars with AI brings new insights
Scientists say AI could be used to massively decrease the time it takes to compute the properties of the complext orbits of binary stars.
EarthSky Voices
August 8, 2025
NOAA updates forecast. Above-normal hurricane activity still predicted
NOAA updates forecast for the 2025 hurricane season. They still anticipate a more active than average season with 2 to 5 major hurricanes.
Rachel Duensing
August 8, 2025
August full moon on August 8-9 is the Sturgeon Moon
The August full moon is the Sturgeon Moon. It takes place overnight on August 8-9, 2025. Then it will lie in front of the constellation Capricornus.
John Jardine Goss
Editors of EarthSky
August 8, 2025
Journey to a black hole? An innovative, epic mission concept
In a new mission concept, a tiny nanocraft probe could make the journey to a black hole. Once there, it could conduct experiments to test the laws of physics.
Paul Scott Anderson
August 8, 2025
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