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EPISODES
Surveying the Surroundings
The Perseverance rover compiled this 360-degree panorama of its landing site in Jezero Crater on Mars. Engineers soon will prepare a small (...)
Dipper Orphans
Most of the stars that make up the Big Dipper are members of a sky-spanning family known as the Ursa Major Moving Group. Its stars all formed (...)
Sakurai’s Star
Some stars just don’t know how to stay dead. Consider Sakurai’s Object. It had already “died.” But 25 years ago this week, an amateur astronomer in (...)
Moon and Gemini
Castor and Pollux, the twin stars of Gemini, line up to the upper left of the Moon at nightfall. Pollux is closer to the Moon, and is the (...)
Moon and Gemini
Sextuplets are rare — only a couple of hundred sets have been recorded. And they’re rare among stars as well — astronomers have recorded only about (...)