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 1:15 Anna Nicole Smith's look-alike daughter Dannielynn Birkhead attends 2024 Kentucky Derby 3:27 Dua Lipa claps back at viral ‘give us nothing' meme during ‘SNL' hosting debut 3:27 Here's one of the luxurious suites your favorite A-list celebs are getting ready in for the Met Gala 1:41 ‘The Mummy' turns 25: Remembering the Brendan Fraser classic 3:45 Afternoon rains expected on Sunday