According to new simulations, many, even most, planets get ejected from their star early in their history Star Trek ...

Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed of chunks of rock and ice like comets, dwarf planets, and random objects ...

Some peas-in-a-pod systems also have outer planets like our solar system. Deciding on a rule to designate inner and outer regions wasn't easy, but the team classified outer planets as those that take ...

The relative size of the inner planets of our solar system: Mercury, Venus, Earth and Mars. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

This solar system consists of four inner rocky planets and four outer gas giant planets as well as an asteroid belt, containing thousands of huge rocks, dwarf planets and comets. Our solar system ...

Pluto was previously classed as the ninth planet from 1930 to 2006, until more dwarf planets were discovered and it was reclassified. There are many comets in the outer solar system. Comets are ...

"We have been waiting for 10 years to confirm that our finely tuned operations of the telescope would also allow us to access the inner planets. Now the results are in, and we can do interesting ...

Pluto isn’t the only dwarf planet in our solar system's outer reaches. Now is an ideal time to look for the egg-shaped Haumea ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

PUNCH isn't the only spacecraft studying the solar corona and the transition into the solar wind. NASA's Parker Solar Probe regularly flies closer to the sun than any other spacecraft has gone before; ...

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR ... measure colors of the outer planets in directly imaged systems.