Large and small planets are born from very different circumstances, according to data from NASA’s now-retired space telescope ...

In late 2024, astronomers spotted asteroid 2024 YR4 on a trajectory that could potentially threaten Earth. This observation ...

Meteorites are rocks from space that survive their fiery descent through Earth's atmosphere and reach the ground. More than ...

Young, close-orbiting exoplanets known as sub-Neptunes may form farther from their stars and migrate inward or lose their ...

Saturn now leads the solar system with 274 known moons. Scientists say many moons formed from past collisions.

Millions of years ago, our Solar System sailed through the Orion Complex, part of the vast Radcliffe Wave structure. This ...

NASA’s James Webb Telescope captured direct images of gas giants in HR 8799, revealing their carbon dioxide-rich atmospheres.

"This has been a decade-long detective story, with each recorded meteorite fall providing a new clue," said one astronomer.

It's rare for any observatory to directly image a planet beyond our solar system, called an exoplanet, but the powerful James ...

NASA’s James Webb Space Telescope has provided a direct look at the multiple gas giant planets within the iconic planetary ...

Bothell, Wash.-based Portal Space Systems shows off the lab where its solar thermal propulsion system will be developed.

Studying young gas giant exoplanets' compositions and orbits could help us better understand how our own solar system's gas ...