We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

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

Planets' temperatures are largely influenced by their structural characteristics and proximity to the Sun, however, Venus ...

Astronomers have discovered more than 300 exoplanetary systems that have three or more known planets. Most of these planets are about the same size and spaced close together, earning them the ...

Astronomers have announced that the James Webb Space Telescope has successfully captured its first direct images of carbon dioxide gas on a planet beyond our solar system. The findings are both a ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy.

This is particularly puzzling, as a vast majority of meteorites can be traced to some well-known parent body—whether that be the Moon, Mars, or other asteroids. In fact, according to New Scientist, ...