Science Non Science Podcast (S1E3):

A tiny asteroid was found to be orbiting our Earth in Feb 2020. 

For a while, our main moon had a very tiny cousin. 

Let's go on the Journey to Mini Moon...

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Ref: 

https://scroll.in/article/954561/weve-got-company-a-second-moon-has-been-orbitting-the-earth-for-three-years 

https://www.space.com/minimoon-2020-cd3-gone-earth-orbit.html

https://phys.org/news/2020-02-earth-captures-mini-moon.html