Earth and Mars are constantly moving, but don’t stay a constant distance apart. Plus, spacecraft don’t travel in a straight line to their destination.

Artemis 2 will send a crew of four astronauts on a 10-day mission around the Moon. Here is the mission's flight path, step by ...

A new study shows that the event that wiped out the dinosaurs caused only a small drop in shark and ray species at the same ...

This faraway, ancient ball of stars may have been captured from another galaxy that passed too close to the Milky Way.

NASA's IR space scope explores the Milky Way’s most prolific star-forming region, cracking open new secrets of how stars form ...

Commissioned with observing high-energy events, particularly solar flares, the High-Energy Solar Spectroscopic Imager (later renamed the Reuven Ramaty High-Energy Solar Spectroscopic Imager; RHESSI) ...

When most people picture an astronomer, they think of a lone person sitting on top of a mountain, peering into a massive telescope. Of course, that image is out of date: Digital cameras have long ...

In the late 1970s, Vera Rubin and Kent Ford of the Carnegie Institution of Washington stared, confused, at the punch-card readouts from their observations of the Andromeda Galaxy. The vast spiral ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

(This article was originally published in the May 2022 issue of Astronomy). St. Augustine said of time, “If no one asks me, I know what it is. If I wish to explain to him who asks, I don’t know.” Time ...

Whether you’re looking for a new telescope, eyepiece, binoculars, or anything else you need to up your observing game, we’ve got you covered.