Over four billion years ago, the solar system was a wild and dangerous place. Swirling clouds of dust and gas slowly turned ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.

How Did the Solar System Form? The tale of our sun may begin with another star: a predecessor whose fiery death brought about the birth of our solar system.

Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

Tiny shavings from a single meteorite could completely overturn our understanding of how the solar system formed, after the space rock turned out to be older than expected. Previous research ...

Polycyclic aromatic hydrocarbons (PAHs) are an abundant class of organic molecules in space, playing a significant role in the interstellar medium (ISM). These molecules, composed of fused carbon ...

Mysterious spherical droplets in meteorites aren’t just cosmic oddities. They’re evidence of planetary formation.

The samples, which were scooped up by NASA's OSIRIS-REx spacecraft during a brief yet dramatic touchdown on Bennu in 2020, ...

“The gas giants must have formed by 4 million years after the formation of the solar system,” Weiss says.

Since the first discovery of planets beyond the solar system in 1995, more than 6,000 exoplanets have been identified. Many ...