Two of the most mysterious planets in our solar system are Uranus and Neptune. These planets are also known as ice giants, due to their intermediate-mass and size which suggests an ice-rich ...

In this video segment adapted from NOVA, learn how the four rocky planets of the inner solar system formed.

They noted that any larger asteroid formed very early on in the solar system would have been heated to high temperatures by the decay of large amounts of aluminum-26, a radioactive nuclide ...

Scientists have found how our solar system was formed in the wind-blown bubbles around a giant, long-dead star.

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

Scientists have found how our solar system was formed in the wind-blown bubbles around a giant, long-dead star.

In a significant breakthrough, astronomers have identified an asteroid boasting its own ring system, a feature previously assumed to be exclusive to giant planets. This extraordinary celestial body ...

New studies of a rare type of meteorite show that material from close to the sun reached the outer solar system even as the planet Jupiter cleared a gap in the disk of dust and gas from which the ...

Standard planet-formation models have been unable to reconstruct the distributions of the Solar System's small, rocky planets and asteroids in the same simulation. A new analysis suggests that it ...

Researchers have laid out a new, comprehensive theory for how the solar system formed — inside the bubble of a long-dead, giant star.

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

The dwarf planet formed a bit differently from the rest of the solar system.