The bestselling author discusses his inspiration, creative process, and favorite scientific tidbits behind the feature film.

Although it’s visible all year round from mid- and high-northern latitudes, now is a great time of the year for newcomers to stargazing to look for and find the famous star pattern known as the Big ...

The Sun, along with more than 1,500 other stars, journeyed from the middle of the Milky Way to its current position a few billion years ago.

Look north this evening a couple hours after sunset and you’ll easily spot the large shape of the Big Dipper as it sits upside-down in the sky, appearing to pour from its cup into that of the smaller ...

The simple answer is that Saturn’s rings do cast shadows on the planet’s surface! NASA’s Cassini spacecraft, which orbited Saturn from 2004 to 2017, took the dramatic image of the rings’ shadows on ...

French astronomer Urbain Le Verrier was a tutor and an assistant at the Paris Observatory when the director, François Arago, asked him to investigate irregularities in Uranus’ orbit. Using extensive, ...

French astronomer Charles Messier did not intend to be remembered for his discoveries of galaxies, nebulae, and stars clusters when he looked to the sky in the 1750s. Dubbed the “Ferret of Comets” by ...

The Galilean moon Callisto disappears behind Jupiter in an occultation early this morning. The catch is that the event is only visible from the western half of the U.S., but observers farther east can ...

A transit of Io and its shadow occurs early this morning, after which Io reaches the western extent of its orbit and comes back around, passing behind Jupiter in an occultation visible late tonight.

High in the south this evening is Canis Minor the Little Dog, shining above the bright star Sirius, which lies closer to the horizon. True to its name, the Little Dog is a little constellation, ...

Io transits Jupiter’s broad disk late tonight, beginning at midnight EST. On the East Coast, Jupiter is still 40° high in the west at local midnight, readily visible as the brightest point of light in ...