With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

A bevy of supermoons, a dramatic total solar eclipse and a "blood moon" total lunar eclipse are some of the highlights of the ...

Explore the winter sky at Bonneyville Mill Jan. 9. Bring binoculars or use a 10-inch telescope for stunning views.

For the first time since Pluto was demoted, the idea of a true ninth planet is edging from speculation toward something ...

New observations of a nearby red giant star suggest that a long-standing explanation for how giant stars spread life’s essential elements through the galaxy may be incomplete. Starlight pushing on gra ...

Most of what people casually call “the universe” is not where instinct suggests. Stars, planets and glowing gas clouds are ...

Asteroid 2024 YR4, a 53–67 meter wide object discovered by Chile's ATLAS telescope in late 2024, poses a significant threat ...

Kicking off the year’s cosmic wonders is the moon, drawing the first astronauts to visit in more than 50 years as well as a ...

At 2:23 am Eastern time on March 19, 2025, an astronaut aboard the International Space station (ISS) captured a striking ...

On the launch anniversary of the NASA/ESA/CSA James Webb Space Telescope, ESA presents a unique compilation of zooms into ...