Astonishingly, we can identify molecules present in the atmospheres of exoplanets.

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction in ...

The rare 3I/ATLAS alignment on Jan. 22 coincides with the 'opposition surge' phenomenon. Learn the mystery of this 13-billion-year-old visitor.

ESA's first mission to another world, the Mars Express orbiter, began circling the Red Planet on June 2, 2003. Ever since, ...

A closer look at the Helix Nebula reveals how dying stars shed material, shape space, and hint at the distant future of our ...

Sunita Williams said two things left a lasting impression on her during her years in space. The astronaut pointed to the ...

It may be one of the most iconic sights in the night sky, but astronomers have never seen the Helix Nebula like this before.

February brings several special events, including a rare "occultation," and a planetary parade of six planets.

NASA's James Webb Space Telescope has zoomed into the Helix Nebula to give an up-close view of the possible eventual fate of ...

Webb’s breathtaking view of the Helix Nebula shows a dying star’s final breath becoming the seeds of future worlds.

A spectacular aurora display painted the skies above Europe on January 19, 2026, as seen from the International Space Station ...

Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.