How is an invisible magnetic field observed around a planet, so far away that it is several tens or hundreds of light years ...

On this planet, clouds emerge every morning and disappear by night as astronomers study the giant exoplanet WASP-94A b using ...

Two decades ago, the International Astronomical Union—which defines and names celestial bodies—redefined the criteria for being a planet, putting Pluto into the new category of dwarf planet ...

A new Planet Fitness facility will soon debut at a York County shopping plaza. Planet Fitness is currently gearing up to ...

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

The Blue Origin explosion proves that space is still hard, and things can go wrong unexpectedly.

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

Supermassive black holes are the largest known black holes in the universe, sitting at the center of most large galaxies. They are sometimes described as cosmic monsters because they feed on ...