Spotted earlier this year, asteroid 2020 CD3 is only the second temporary natural satellite, or minimoon, ever detected around Earth. It didn’t stick around for very long, but we learned some ...
This image of the temporary mini-moon 2020 CD3 (center) was obtained with the 8-meter Gemini North telescope on Hawaii's Mauna Kea and combines three photos through different filters to produce the ...
Astronomers using data collected with the Lowell Discovery Telescope (LDT) have helped to characterize only the second known minimoon of Earth, a newly discovered asteroid with the designation 2020 ...
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