Stargazers were treated to a once-in-a-lifetime illusion as the solar system’s two biggest planets appeared to meet in an event astronomers call the ‘Great Conjunction’

People gather at River Parks trails at 41st and Riverside, to get a look at Jupiter and Saturn on Monday, Dec. 21, 2020, in Tulsa, Okla. The two planets were closer to each other than they’ve been in 800 years. (John Clanton/Tulsa World via AP)
John Clanton/The Associated Press