Alexis Sky - RT @NASA: Mirror, mirror in the sky, Focus X-rays on the fly This odd-looking thing is a set of mirrors for an X-ray telescope. In this @…

5:31pm PDT - September 20th, 2022

RT @NASA: Mirror, mirror in the sky, Focus X-rays on the fly This odd-looking thing is a set of mirrors for an X-ray telescope. In this @…

0 retweets 239 likes -