RT @TheUmno: In the 5 years I’ve been watching the sun, this is the largest coronal hole I’ve seen. Fast solar wind expected nex… twitter.com/i/web/status/7…
RT @TheUmno: In the 5 years I’ve been watching the sun, this is the largest coronal hole I’ve seen. Fast solar wind expected nex… twitter.com/i/web/status/7…