The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how ...

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

Xi Zhang, a professor of Earth and planetary science at UC Santa Cruz, has discovered that an exoplanet classed as a ...

Discover the epic 9-year journey of NASA’s New Horizons spacecraft as it races through the solar system to uncover Pluto’s ...

NASA's James Webb Space Telescope (JWST) has recently discovered a rare exoplanet, whose composition has baffled scientists ...

This year NASA unveiled new discoveries beyond our solar system, the count has surpassed 6,000, with several thousands more ...

There could be a ninth planet in our solar system that's lying in wait to be discovered - and no, it's not Pluto. Our solar ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

Planet-forming collisions were once thought to be rare—new observations suggest they may occur far more often than scientists ...

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 ...

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