Researchers have developed the Smaller Than Earth Habitability Model (STEHM) to assess which planets can maintain ...

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 ...

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 ...

In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and planetary masses silently orbit their stars—sometimes thousands of astronomical ...

Add Yahoo as a preferred source to see more of our stories on Google. University of North Carolina researchers have recently discovered a baby exoplanet that could challenge our current understanding ...

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

Scientists may have identified one of the Solar System’s most important “planet factories” hidden just beyond Jupiter.

All of our solar system’s planets are lining up in the night sky at once this week. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a great ...