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The hunt for asteroids
New short video from NASA about the hunt for potentially hazardous asteroids and comets, and ways to defend Earth against them.
August 21, 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
Total solar eclipse on August 21
You'll find basic information about the August 21, 2017, total solar eclipse - and links to all our eclipse articles - here.
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
Black Moon eclipse on August 21
Black Moon is one name for the third of four new moons in a season. The August 21 new moon is the third of four new moons between the June 2017 solstice and September 2017 equinox. Voila! Black Moon eclipse.
August 20, 2017
Moon and Venus at dawn August 19
Did you see the moon Friday morning? Look again Saturday, when the moon will have shifted closer to Venus, to the sunrise and to Monday's eclipse!
August 18, 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
Cassini prepares for last look at Titan
Even as the long-lived Cassini spacecraft gears up for its last moments at Saturn, it's preparing for a final long-distance look at Titan, Saturn's large moon, on September 11.
August 17, 2017
