The NASA/ESA Cassini-Huygens mission explored Saturn and its moons from 2004 to 2017, providing the most detailed images and ...

Titan’s shadow transits the northern hemisphere of Saturn this morning beginning around 3:30 A.M. EDT. It’s definitely worth ...

Over time, these stars became known as Wolf-Rayet stars (Charles Wolf was a French astronomer, and helium was first detected by the French scientist Georges Rayet and others), and astronomers came to ...

Venus moves east as July progresses and stands 3° due north of Aldebaran on the 14th, after skirting the northern regions of ...

Titan, Saturn's largest moon, casts its shadow across the gas giant in a series of rare shadow transits. This unique ...

Skywatchers in central Wisconsin can expect a stunning week ahead, with planetary pairings, moon phases and celestial ...

For the first time in 15 years, you can see a game of shadows across Saturn. You won't see it again until 2040.

Sky This Week is brought to you in part by Celestron. Friday, June 27The Moon passes 3° north of Mercury at 2 A.M. EDT. By ...

There will be several chances to see the shadow of Saturn's largest moon, Titan, pass across the ringed planet's Earth-facing ...

Jupiter will be too close to the sun to see Tuesday, but it will move farther out in the dawn sky and on Aug. 12 will have a ...

Hipparchus’s star catalog is the oldest known attempt to document the positions of as many objects in the night sky as possible, and it was the first time that two coordinates were used to ...

Looking for Saturn? On the night of May 22, the planet will be just 2°28’—or the distance of about 2.5 pinky fingers at arm’s length—away from the waning crescent moon.