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Circumpolar stars never rise or set
Circumpolar stars stay above the horizon all hours of the day, every day of the year. Although you can’t see them, they’re up even in the daytime.
February 22, 2026
Ice-free oases on Snowball Earth sheltered early life
Scientists have found evidence for ice-free oases on Snowball Earth, which might have provided a lifeline for early complex life.
February 20, 2026
Too many satellites? Is Earth’s orbit headed for catastrophe?
Are there too many satellites? The growing number of satellites poses an under-regulated threat of disaster for spaceflight. But it's not too late to act!
February 20, 2026
Meet Gemini the Twins, 2 bright stars close together
The constellation Gemini the Twins is home to Castor and Pollux. Learn more about these bright stars, visible on northern winter nights.
February 20, 2026
John Glenn 1st American in orbit 64 years ago today
John Glenn became the first American to orbit Earth on February 20, 1962, 64 years ago today. His space capsule was called Friendship 7.
February 20, 2026
NASA says it failed Starliner astronauts, blasts Boeing
In a press conference on February 19, 2026, NASA administrator Jared Isaacman took responsibility for the agency's failures during the 2024 Starliner flight.
February 19, 2026
The most recent volcanoes on Mars were surprisingly active
Scientists studied orbital data of minerals from recent volcanoes on Mars and found they were more complex than they expected, with ongoing eruptions.
February 19, 2026
Fire weather threatens a large swath of the US
Critical fire weather will threaten much of the southwestern and central US on Thursday. Wildfires already plagued parts of Oklahoma and Kansas on Tuesday.
February 19, 2026
Bird guano created wealth for ancient Peruvian community
The ancient Chincha kingdom of Peru prospered thanks to high maize yields, made possible by bird guano from nearby islands.
February 19, 2026
Look for the colors of the stars in the night sky
Winter is the perfect time for noticing the colors of the stars. Start with Capella, then move on to Taurus and Orion. Check out some colorful stars tonight!
February 19, 2026
