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Giant sunspots, solar flares, aurora alert!
Sunwatchers are still tracking those 2 large sunspot groups making their way across the Earth-facing side of the sun. Then yesterday there was an X-flare! Watch for possible auroras.
September 7, 2017
See an extra-red moon or sun this week?
If you live in the U.S. or Canada, a peculiarly red moon - or very spectacular sunrise or sunset - might be due to smoke from wildfires. Click in for images from Earth and space.
September 6, 2017
Asteroid Florence found to have 2 moons
3122 Florence passed yesterday, biggest near-Earth object to pass so close in a century. Radar revealed 2 orbiting moons! Plus a chart that'll help you spot the asteroid.
September 2, 2017
How to watch Monday’s eclipse online
Can't travel to the path of totality for the August 21, 2017 total solar eclipse? Never fear. Here's how to watch online from a variety of sources.
August 21, 2017
What to look for in a total solar eclipse
The August 21 total eclipse will last several hours. There will be many interesting things to look for. Bookmark this handy checklist of must-see events and effects, from eclipse gurus Fred Espenak and Mark Littmann.
August 21, 2017
See 4 planets during the total eclipse
During a total solar eclipse, the daytime sky darkens, and bright stars and planets pop into view. Charts here, identifying which ones for the August 21, 2017 eclipse.
August 21, 2017
Best places to watch 2017 eclipse
Looking for road maps showing the path of totality for the August 21, 2017 eclipse? Click here.
August 20, 2017
Add your eclipse event to the AAS map
The American Astronomical Society wants to help you publicize your event for the August 21, 2017 total solar eclipse.
August 18, 2017
Moon on its way to the eclipse
Insights and a cool chart from astronomer Guy Ottewell. Plus, if you click in, you'll find photos of waning crescent moons from the past few mornings ...
August 17, 2017
Sunspots during solar eclipse? Probably
Add sunspots to the list of wondrous sights to look for during the total solar eclipse of August 21, 2017.
August 15, 2017
