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Great Square of Pegasus points to Andromeda galaxy

We showed you how to use Cassiopeia to find this galaxy. Now try star-hopping from the Great Square of Pegasus.

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.

Mars moves in between the planet Saturn and the star Antares on August 24, 2016.Read more

2016’s great Mars and Saturn conjunction

Mars, Saturn and the star Antares have made a triangle in our sky for months. Now see them in a straight(ish) line.

Waning gibbous moon on the morning of July 24, 2016, by Ruy Queiroz in São Paulo, Brazil.

Where’s the moon? Waning gibbous

Look for the waning gibbous moon to rise in the middle of the night. It might look strangely oblong.


Cassiopeia points to Andromeda galaxy

Easiest way to find the large spiral galaxy next door. Try it, next time you’re under a dark sky.


How to watch a solar eclipse safely

Tips on eclipse-watching. Order your eclipse glasses now!

As autumn 2013 begins, there is a daytime moon in the morning sky.  Our friend Michelle Shoenberger Fritz captured it over Strasburg, Pennsylvania.

See the daytime moon

The daytime moon floats pale and beautiful against a blue sky. Look west after sunrise!


Quasi-conjunction of Mercury and Jupiter

Venus and Jupiter are super bright, near the sunset glare. Mercury is nearby.


Deneb is distant and very luminous

Deneb is one of the most distant stars you will see with your eye alone. That’s because it’s one of the most luminous stars in the Milky Way galaxy.


Born under the sign of Ophiuchus?

Born between November 29 and December 18? If so, the sun passes in front of Ophiuchus on your birthday.