Yesterday, I linked to a picture taken a few days ago by Alan Friedman that showed the sunspots that are currently blowing their lids with flares. He just sent me a new shot, taken yesterday, and… well. It’s stunning. Presenting the sunspot cluster Active Region 1302.
Astronomy | autumnal equinox | At 09:05 UTC (05:05 Eastern US time) this morning, the position of the center of the Sun's disk, moving south, crossed the celestial equator on the sky. For nor
Most cosmic phenomena are so far away that we can't see their movement or evolution over the course of a human lifetime. Every once in awhile, when conditions are just right, we get lucky. This is one of those times.