Neil deGrasse Tyson @neiltyson
Solar Acne My co-author from "Welcome to the Universe in 3D" https://t.co/rO5C3OydiQ …nabbed this photo of our Sun at 10am ET today, Tons of sunspots: Good for aurora-watching in higher latitudes. For other cool astro-photos see his Princeton website. https://t.co/XPfZRhfa3U https://t.co/EFJqtZWYop — PolitiTweet.org