The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

In the bigger picture, "down" could be defined as being below the plane of the solar system, which is known as the ecliptic.

When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our ...

Astronomers have long searched for life within a rather narrow ring around a star, the "habitable zone," where a planet ...

Despite its small size, Mars seems to have a huge impact on the orbital cycles that govern Earth’s climate, especially those ...

For over a century, scientists have suspected there could be a hidden planet lurking far beyond Neptune—massive enough to ...

The space rock is hurtling through our cosmic backyard at a zippy 26,200 miles per hour, according to the space agency.

Astronomers watched a distant star dim for months and found a metal-rich cloud that may be the aftermath of a massive ...

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

The earth (and humanity) would be very different without our smaller red neighbor. In A Nutshell Computer simulations show ...