NASA @NASA
To study oxygen particles where Earth's atmosphere leaks into space, scientists traveled to the Arctic and launched a sounding rocket — into an aurora! 🌍🚀🌌 🕑 At 2pm ET, join us to learn about these rockets & how they're used for science. 🔗 https://t.co/EzARR5IAaC ❓#AskNASA https://t.co/qToUBDAR8Y — PolitiTweet.org