There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

Since Pluto was relegated to dwarf planet status, almost everyone has agreed that there are eight planets in our solar system ...

Uranus and Neptune are the two furthest planets in the Solar System and have been visited only once by human spacecraft – by ...

The Copernican Principle, named in honor of Nicolaus Copernicus (who proposed the heliocentric model of the Universe), states ...

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

Planet has announced a new class of imaging satellites that will replace a line of spacecraft dating back to the company’s ...

"Both hemispheres are darkening," the team explained. "The Northern Hemisphere is darkening at a faster rate." ...

After marking the 30th anniversary of the discovery of the first exoplanet around a sun-like star, we now look forward to what the next 30 years might offer.

This type of thermal energy storage, also known as ice batteries, is being added to buildings in the U.S. for its ability to provide cool air without releasing planet-warming emissions.

A rare interstellar visitor has entered our Solar System, and it’s behaving in ways that have astronomers both fascinated and ...

Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...