The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

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 ...

Astronomers finally spotted evidence of auroras on Neptune after years of searching, raising new questions about the planet.

So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully ...

Long-Sought Auroral Glow Finally Emerges Under Webb’s Powerful Gaze Neptune lies in the cold, dark reaches of the outer edges of our solar system, about 3 billion miles from the Sun, at the farthest ...

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The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Astronomers have recently unveiled an extraordinary discovery in the cosmos: a new exoplanet named Enaiposha, located 47 ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

The NEO Surveyor fulfills a 2005 act of Congress ordering NASA to catalog 90% of near-Earth objects larger than 459 feet (140 ...

Aurora, commonly known as the Northern Lights in the northern hemisphere, occur when charged particles from the Sun collide ...

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.