A novel approach to star trails

Featured in National Geographic and Nature, Canadian amateur astronomer Christian Sasse explains how he created his unique star trails, by superimposing images.

Close conjunction of Venus and Uranus

Planet Venus passed 1.8 degrees south of planet Uranus on June 2, 2017, and Eliot Herman in Tucson captured their close conjunction.

2017’s closest supermoon is May 25

For the 1st time since 2009, a new moon - not a full moon - will be the closest and largest supermoon of a year.

Planet circus in May, with explanation

A beautiful spatial view of our solar system from Guy Ottewell, showing the planets’ paths along their orbits in approximately mid-May, 2017, with sightlines to them from the Earth.

See it! Last night’s moon and Jupiter

They were the brightest objects nearly all night Sunday night, as seen from around the world. Here are a few photos from the EarthSky community. Thanks to all who submitted!

See it! Meteors, moon, Venus photos

The Lyrid meteor shower didn't produced as many meteors as hoped, but we some lovely photos. And the moon and Venus were awesome Sunday morning!

Asteroid 2014 JO25 bigger than expected

It's coming closer today than any asteroid this large since 2004. It came into view of small telescopes a few hours ago. Early radar observations indicate it's bigger than we thought.

A star whose magnetic field flipped

Tau Boötis was the first star, other than our sun, ever seen to undergo a magnetic field reversal. This post also includes 2 great videos about our sun's magnetic reversals.

Watch for Venus before dawn

While watching Jupiter and the moon around April 9-11, don't forget Venus! It passed between us and the sun on March 25 and now blazes in the east before dawn.

Jupiter and its moons

The 4 largest moons of Jupiter - called the Galilean satellites - are Io, Europa, Ganymede and Callisto. Recent photos here.