NASA shares pic of Jupiter-Saturn's 'Great Conjunction' as seen from Moon

The NASA's official account about Earth's Moon shared a picture of the 'Great Conjunction' of planets Jupiter and Saturn as seen from the Moon. "Unlike Sun, that's no star, it's two planets! #TheGreatConjunction looks great from the Moon!" it captioned the picture. On Monday night, Saturn and Jupiter were the closest in the sky in nearly 400 years.