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Mars and Saturn put on a show

See Mars, Saturn and the star Antares in a line on our sky’s dome. Photos here from the EarthSky community. Thanks to all who posted!

Hoax image via social media.

No double moon in 2016, or ever

We thought we might get through this summer without the dumb hoax about Mars as big as a full moon rearing its head. But, no.

Image via GreatAmericanEclipse.com

Best places to watch 2017 eclipse

Where’s the best place to see the August 21, 2017 eclipse? Here are 10 great viewing spots to gaze upon nature‚Äôs grandest spectacle, weather permitting.


Dates of lunar and solar eclipses in 2016

The next eclipse is an annular solar eclipse on September 1, 2016.

Total solar eclipse via Fred Espenak

How many eclipses in 1 calendar year?

Every calendar year has at least 4, but 5, 6 or even 7 eclipses are also possible. Why don’t we see them all?

Photo by Jack Fusco

Perseid meteors: All you need to know

Perseid meteor shower peak was predicted for the morning of August 12. If you missed it, watch for meteors in a country sky between midnight and dawn Saturday morning.

Taken during the 2015 Perseid meteor shower in August - at Mount Rainier National Park - by Matt Dieterich.  He calls the photo 'Skyfall.'

EarthSky’s meteor shower guide for 2016

The Perseid meteor shower probably peaked on the night of August 11-12. Look for meteors tonight, too, and especially in the hours before dawn on August 13.

Skywatcher, by Predrag Agatonovic.

August 2016 guide to the 5 bright planets

Coming up, the conjunction of Mars and Saturn on August 24, and the conjunction Venus and Jupiter on August 27.

Photo taken August 4, 2016 by Yuri Beletsky in Chile's Atacama Desert.

Venus, Mercury and the moon!

Two photos of this week’s planet and moon spectacular, from a master sky photographer, from one of Earth’s most pristine skies.

Geminid meteor in 2012 by Henry Shaw.

Learn to shoot photos of meteors

Want to try to capture a meteor on film? The first step is planning. The next step is to gather your equipment. Then on to the capture process itself.


What is a conjunction?

People get excited about conjunctions in astronomy, and they are often beautiful. EarthSky community member Tom Wildoner provides an illustration.


See all 5 bright planets after sunset

Three of the 5 planets are easy to see. Two aren’t so easy. Charts and info here that can help you see all 5 planets together in early August 2016.

Randy Baumhover captured this image at Meyers Creek Beach on the Oregon coast.

Top 10 tips for meteor-watchers

How to watch a meteor shower. Tips for beginners.

The star Skat is the 3rd-brightest in the faint constellation Aquarius.

Delta Aquarid radiant point near Skat

How to spot the radiant point for the Delta Aquarid meteor shower, going on now. Plus … why meteors in annual showers have radiant points.

David S. Brown caught this meteor on July 30, 2014, in southwest Wyoming.

Watch for Delta Aquarid meteors

Delta Aquarid shower officially began mid-July. Nominal peak July 28 or 29. The shower is long and rambling. If you watch the Perseids in August, you’ll see Delta Aquarids then, too.


Moon shadow in 2017 eclipse

Fly along with Earth’s shadow in a video depicting the path of the August 21, 2017 total eclipse of the sun, first eclipse over the continental U.S. since 1979.

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Watch Mercury and Venus set

What are the odds? Peter Lowenstein caught Venus and Mercury on the evening of their conjunction – July 16, 2016 – setting through a thin break in the clouds.

The large yellow shell depicts a light-year; the smaller yellow shell depicts a light-month. More details about this image at Wikimedia Commons.

How far is a light-year?

How can we comprehend the distances to the stars? This post brings the scale of light-years down to the scale of miles and kilometers.


See it! Young moon near Jupiter

The waxing crescent moon swept near Jupiter this weekend as seen from all parts of Earth. Photos from EarthSky friends, here …


Have you seen Venus yet?

Venus is returning to the west after sunset. We’re hearing reports of brief glimpses of it, low in the twilight. EarthSky community photos here!