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Newly discovered sea anemone builds homes for hermit crabs
A newly discovered sea anemone secretes a substance that becomes a hardened home for hermit crabs. The animals have a mutually beneficial relationship.
November 10, 2025
Arctic air blast to drop temps for millions in U.S.
An Arctic air blast is sweeping through parts of the U.S. Sunday and Monday, even dropping temperatures in southern states.
November 9, 2025
Black hole record: Brightest and most distant flare yet
Astronomers have found the biggest and most distant black hole flare yet. It was likely caused by a massive star too close to a supermassive black hole.
November 9, 2025
The sinking of the Edmund Fitzgerald, 50 years later
It's the 50-year anniversary of the sinking of the Edmund Fitzgerald in Lake Superior. Do you know the science behind why the lake never gives up her dead?
November 9, 2025
Look out our galaxy’s south window, into intergalactic space
Use the Great Square of Pegasus to locate Fomalhaut. Then you're on your way to looking out our galaxy's south window into intergalactic space.
November 9, 2025
Comet Lemmon is closest to the sun today
Comet Lemmon reaches its closest point to the sun on November 8. It's the best comet of 2025. You can still see it! A finder chart and some great images of it here.
November 8, 2025
What are red giants? Our sun will become one!
What are red giants? Most main-sequence stars, like our sun, will become one. Red giants swell to such a large size they can swallow their inner planets.
November 8, 2025
Halley’s Comet is Edmond Halley’s namesake. Happy birthday, Edmond!
Astronomer Edmond Halley is famous for predicting the return of the comet that we now know as Halley's Comet. Edmond was born on November 8, 1656.
November 7, 2025
Typhoon Kalmaegi hits Vietnam, with 188 dead in Philippines
Typhoon Kalmaegi has just reached Vietnam, having left a trail of devastation and at least 188 dead in the Philippines earlier this week.
November 6, 2025
Almach, a quadruple star system in Andromeda
With the eye alone, Almach looks like a single star. Through a telescope, it looks like a colorful duo. But Almach is really a 4-star system.
November 6, 2025
