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Sky This Week is brought to you in part by Celestron. Friday, July 18Mars remains close to Sigma (σ) Leonis, Leo the Lion's back foot, in the evening sky for several days. Shining at magnitude 1.5, ...
This is only the third interstellar object ever found. The first was 'Oumuamua in 2017, and the second, Borisov, in 2019.