Antares: More than meets the eye

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The bright red star Antares is located in the direction toward the center of our Milky Way galaxy. It's a rich region of the sky for telescopic observers.

Deborah Byrd

July 1, 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.

Eleanor Imster

June 30, 2017

Top 10 things to know about asteroids

For example, if all known asteroids were rolled into a ball, they'd still be smaller than Earth’s moon ... except for 1 big one.

Eleanor Imster

June 30, 2017

After sunup, look for the daytime moon

In the days after every full moon, look in a blue sky after sunrise for a daytime moon.

Deborah Byrd

June 30, 2017

1st quarter moon with Jupiter June 30

The dazzling planet Jupiter is near the first quarter moon on June 30. Enjoy the waxing moon and Jupiter on July 1, too!

Bruce McClure

June 30, 2017

Why do quasars twinkle?

Is it just a coincidence that some twinkling quasars are close on the sky's dome to hot, bright stars? New research suggests a connection and an explanation for a 30-year-old mystery.

Deborah Byrd

June 29, 2017

Moon approaching Jupiter on June 29

Tonight – June 29, 2017 – you can’t miss the moon and king planet Jupiter, given a clear sky!

Bruce McClure

June 29, 2017

Asgardia’s 1st satellite due to launch

Asgardia's 1st satellite - Asgardia-1 - will launch aboard a NASA mission to ISS later this summer. "Asgardians" are invited to send their personal data - a photo or a file of their choosing – to space with it.

EarthSky Voices

June 28, 2017

Expect colorful clouds from rocket launch

NASA sounding rocket to form blue-green and red clouds in space Thursday morning. Launch window opens 4:25 a.m. EDT (8:25 UTC). Backup launch day is June 30.

Deborah Byrd

June 27, 2017