profile-img
Paul Byrne

@ThePlanetaryGuy

Associate Professor of Earth, Environmental, and Planetary Science at Washington University in St. Louis โ€ข Planetary Evangelist โ€ข he/him/Sir โ€ข ๐Ÿ‡ฎ๐Ÿ‡ช in ๐Ÿ‡บ๐Ÿ‡ธ

calendar_today19-03-2018 14:08:11

31,8K Tweets

80,3K Followers

774 Following