The United States has been at the epicenter of the planet’s most unusually cold conditions early in 2025. The polar vortex is ...

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

Artist's concept of a potentially habitable super-Earth orbiting a star called HD 20794. Illustration credit: Gabriel Pérez ...

Mars may once have held enough water to fill oceans and form coastlines. The planet’s red dust contains water and likely formed in cold conditions.

Cold, dark and distant ... one of three newly defined criteria to be a planet. They were: The body must orbit its host star, just as Earth and Jupiter orbit the sun. It is large enough to be ...

A new study reveals that Earth's biomes changed dramatically in the wake of mass volcanic eruptions 252 million years ago.

The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth.

NASA’s Perseverance rover found pale rocks containing kaolinite on Mars, a mineral that forms in warm, wet conditions.

The study applied methods developed to explore Earth’s atmosphere to quantitatively estimate the influence of gravity waves on Mars’ planetary circulation. Despite it being a very cold planet ...

A long awaited astronomical event dubbed as the planet ... in the cold winter sky this night. Alan Dyer/Getty Images The solar system has eight planets overall – Mercury, Venus, Earth, Mars ...