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Total eclipse of sun: August 21, 2017
All you need to know about the 1st total solar eclipse visible from the contiguous U.S. since 1979, from eclipse master Fred Espenak.
August 6, 2017
Earth’s eclipses are special
Solar eclipses aren't exclusive to Earth, but eclipses viewed from our planet have few rivals in the solar system. A word about Earth's solar eclipses, and what eclipses would be like on other planets, here.
August 3, 2017
A shadow-band project for August 21
Shadow bands are elusive ripples of alternate light and dark, flitting over the ground or the sides of buildings during a total solar eclipse. How to take part in an International Shadow Band Campaign during the August 21 eclipse.
July 20, 2017
Jupiter at east quadrature July 6
It's a hallmark in Jupiter's appearance in our sky. At eastern quadrature, Jupiter is highest in the sky around 6 p.m. local time
July 6, 2017
Solar eclipse safe viewing tips
If you're planning to watch the August 21 total solar eclipse (and we hope you are!) take a minute to watch this video on how to watch safely.
June 30, 2017
How much traffic on eclipse day?
Expert analysis showing how many people - and how much traffic congestion - can be expected along the path of the August 21, 2017 total solar eclipse.
June 26, 2017
NASA’s plans for August 21 eclipse
Not traveling to the centerline of the eclipse? Expect NASA images via 11 spacecraft, at least 3 aircraft, more than 50 high-altitude balloons, and the International Space Station.
June 26, 2017
Saturday night’s extremely young moon
Photo and animation of an extremely young moon - only 18 hours past the new phase - setting over a hill last night, as seen from Rio de Janeiro, Brazil.
June 25, 2017
The eclipse is just 2 lunations away
As we approach another new moon, astronomer Guy Ottewell shares his profound understanding of lunar cycles and the coming total solar eclipse.
June 23, 2017
What’s a conjunction?
When two heavenly bodies seem to come together: EarthSky community member Tom Wildoner explains the term "conjunction" in astronomy.
June 23, 2017
