
NASA @NASA
@Justwhylol1 @NASAKennedy Oh, this old thing? That's Cassiopeia A, a supernova remnant that's one of the things that our IXPE mission will study. Here's what we can tell from the colors in this image: https://t.co/84eIPd5NuG https://t.co/8DgGMhrmu4 — PolitiTweet.org