Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

In our own solar system, there are pretty good odds that you could stand on the surface of an asteroid and not even be able ...

The asteroid belt orbiting between Mars and Jupiter would hurl fragments if it got destabilized, turning it into dust upon mutual collisions.

Here, the 'ice volcano' does not erupt molten rock, but rather 'ice magma' formed from a mixture of water ice, liquid brine, ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

New work from Carnegie’s Alan Boss and Sandra Keiser provides surprising new details about the trigger that may have started the earliest phases of planet formation in our solar system. It is ...

In the crowded early Solar System, young planets frequently collided and reshaped each other. But Mercury stood out. It formed unusually close to the Sun. Mercury’s days are longer than its years. It ...

Scientists from MIT and their colleagues have estimated the lifetime of the solar nebula — a key stage during which much of the solar system evolution took shape. This new estimate suggests that the ...

CAPE CANAVERAL, Fla. — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system.

Astronomers were fascinated after spotting an object from interstellar space hurtling through the solar system earlier this ...

Super-Earths and sub-Neptunes, planets with sizes between Earth and Neptune, constitute approximately one-third of known exoplanets but are absent in our solar system. Their prevalence elsewhere and ...