The status of Pluto not withstanding, our solar system has 8 planets, but one astronomer believes we used to have a ninth that was eaten by the sun.

Somewhere beyond Neptune, the Kuiper Belt is bent. Not by much, and not in a way any known planet can account for. A study published in Monthly Notices of the Royal Astronomical Society: Letters in ...

For the first time since 2008, two new planets are being added to one of northern Maine's most famous — and scientifically accurate — roadside attractions. Dwarf planets Haumea and Makemake are the ...

The Sun may have once swallowed a rocky planet with a mass 5 to 10 times that of Earth. This scenario could explain why our ...

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the extreme winds observed around their equators. While some of these planets have ...

AROOSTOOK COUNTY, Maine (WAGM) - Aroostook County’s iconic Maine Solar System Model is about to get even bigger. Two new dwarf planet models are being added to the roadside attraction that has ...

In the Star Wars movies fictional planets are covered with forests, oceans, deserts, and volcanoes. But new models from a team of MIT, NASA, and Carnegie scientists begin to describe an even wider ...

New research on super-Earths and mini-Neptunes suggests more Earth-like planets may exist. The new study by Rice University researchers Sho Shibata and Andre Izidoro presents a compelling new model ...

Researchers have developed the Smaller Than Earth Habitability Model (STEHM) to assess which planets can maintain life-supporting atmospheres, focusing on size and atmospheric dynamics. Since 1992, ...

When you see art of our solar system as the planet orbit the sun, you may notice that Earth's orbit has a tilt. It is not a perfect circle. What's more, Earth is not the only planet that displays such ...