Oceans hiding within the crusts of distant moons are tantalizing targets for scientists looking for life beyond Earth ...

Imagine predicting an entire planet's existence with nothing but math, and then finding it right where the numbers ...

December is full of opportunities to connect, gather and share in magical, effervescent moments with your nearest and dearest ...

For decades, deep space exploration has depended on a handful of obscure isotopes quietly heating small nuclear batteries on ...

NASA’s SPHEREx has mapped the entire sky in 102 infrared colors, which are invisible to the human eye but can be used to ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

One of the primary goals of the James Webb Space Telescope (JWST) is to detect atmospheres around exoplanets, to try to suss ...

With 2025 coming to a close, it’s time to look down the road at the astrology of 2026 to get a sense of what you can expect ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

The James Webb Space Telescope detected an atmosphere rich with carbon and helium, which is unexpected on this hot planet ...

This mash-up of data from the James Webb Space Telescope and the Chandra X-ray Observatory reveals two galaxies mid-collision ...