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- Share to facebook - Share to linkedin. Artwork of an asteroid and planet earth. Getty. That big crescent that will be hanging in the night sky this week isn’t the only natural moon circling our planet. The International Astronomical Union (IAU) has cataloged a new “temporary captured object:” an asteroid that’s been doing a residency as our very own mini-moon. This second satellite was discovered by astronomers on February 15 using the Catalina Sky Survey (CSS) in Arizona. For now it’s simply known by its catalog entry: 2020 CD3 . Astronomer Kacper Wierzchos from CSS shared the discovery on Twitter on Tuesday. “It's a big deal as out of (around) 1 million known asteroids, this is just t... Full story

26 February