[ad_1] A second Centaur stage during assembly in 1962.Image: NASA An incoming object spotted by astronomers last August was confirmed as the upper stage of a Centaur rocket, which NASA launched in 1966 during an ill-fated mission to the moon. It’s a nice result, but it took some time to …
Read More »Here’s what we know about the second “Minimoon” detected by Earth
[ad_1] The minimaon, as illustrated on February 15, 2020.Image: Catalina Sky Survey Spotted earlier this year, asteroid 2020 CD3 is only the second temporary natural satellite, or minimaon, ever detected around Earth. It didn’t last very long, but we learned some interesting things about our temporary mate and why a …
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