
NASA @NASA
✔️ MYSTERY SOLVED: Like red supergiant star Betelgeuse, astronomers sought to explain why red hypergiant VY Canis Majoris varied in brightness. We now understand why, thanks to @NASAHubble: https://t.co/ND4wmdhm1T https://t.co/Q72zIj7F2V — PolitiTweet.org