space December 21, 2020 1:17 pm Rare ‘Christmas Star' Will Be Visible on Monday for First Time in 800 Years NASA says the planetary conjunction known as the ‘Christmas Star,’ which is only seen once every 800 years, will be visible on Monday night. US & World Videos 8:39 Gina Rodriguez gushes 0ver motherhood with son Charlie 2:22 Scarlett Johansson and Colin Jost have date night at White House Correspondents' dinner 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger 2:30 ‘Baby Reindeer': Inside Richard Gadd's Netflix phenomenon