Learn more about the @NASA Twins study with @ShuttleCDRKelly & @StationCDRKelly & how it will help us plan for Mars.https://medium.com/@ShuttleCDRKelly/in-pictures-the-first-216-days-of-my-twin-brother-scott-kelly-s-record-setting-yearinspace-e4f621ae4170?source=email-8f78fa0d5b6a-1446203861747-daily_digest§ionName=suggested …
0 replies
4 retweets
4 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.