Southwest Research Institute has collaborated with Yale University to summarize the scientific community's notable progress in advancing the understanding of the formation and evolution of the inner ...

A terrestrial planet's surface is sloped and carved with topographical features like mountains, valleys and canyons due to volcanic activity, shifting tectonic plates and in Earth's case, ...

Examples of extrasolar terrestrial planets include Gliese 876 d, a planet that has a mass 7 to 9 times that of Earth.This planet orbits the red dwarf Gliese 876, which is located approximately 15 ...

You can watch comet 3I/ATLAS live online tonight (July 3), thanks to the Virtual Telescope Project, which will livestream ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

All eyes are on Comet 3I/Atlas as astronomers worldwide chase the exotic ice ball through our solar system ...

The nearby star Vega, featured in the 1997 movie Contact, appears to have a smooth disk devoid of giant planets for reasons we can’t explain ...

“They suggest this happened when the formation of the terrestrial planets was more or less complete, apart maybe from the giant impact that formed the moon,” says Chambers, of the Carnegie ...

The largest terrestrial planet is Earth, and the smallest gas giant is Neptune, which is four times wider and 17 times more massive than Earth. There is nothing in between. “In other star systems ...

This illustration shows the orbital motion of six planets discovered orbiting star HD110067 located around 100 light-years from Earth. The planets all are a type called 'sub-Neptunes,' which have ...

The planet in question, HIP 65426 b, is about six to 12 times the mass of Jupiter, according to NASA. That makes it a gas giant that lacks a rocky surface. So it's very unlikely aliens could be ...