Journey to the farthest reaches of our solar system and uncover the mysteries of Sedna, a reddish dwarf planet that orbits ...

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

"I think every astronomer is going to find something of value here, as NASA's missions enable the world to answer fundamental questions about how the universe got its start, and how it changed to ...

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 ...

Astronomers have uncovered a massive hidden planet and a rare “failed star” by combining ultra-precise space data with some of the sharpest ground-based images ever taken. Using the Subaru Telescope ...

Our sun is about halfway through its life, which means Earth is as well. After a star exhausts its hydrogen nuclear fuel, its diameter expands more than a hundredfold, engulfing any unlucky planets in ...

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

Hubble discovered a point of light in a neighboring star system, presumably a debris cloud from a celestial body collision.

The colliding objects are at least 37 miles across — at least four times larger than the object that collided with Earth 66 ...

Neptune’s supersonic winds and icy storms revealed a planet so extreme that it forever changed our picture of the solar ...

Gaia back-tracing points to 3 suspect star systems—G 137-55/54, AT Mic, and a G3V candidate. What fits, what fails.

Young star systems are a place of violent collisions. Rocks, comets, asteroids and larger objects carom off one another and ...