NASA @NASA
“Perhaps one day... travelers arriving at Mars during southern summer will have front-row seats to observe Martian proton aurora." Our MAVEN 🛰️ detected these ultraviolet lights that appear in daytime. What they might reveal about Mars' changing climate: https://t.co/N2mSwiC1Q0 https://t.co/7BnZNQQpYn — PolitiTweet.org