When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...

Uranus is an ice giant planet with a thick atmosphere over a hot mantle of water, ammonia, and methane ices. Humanity has ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.

Jupiter is the largest planet in the solar system. It's about 11 times wider than Earth with an equatorial diameter of 88,846 ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

Last week, a team of scientists claimed to have discovered possible signs of life on a nearby planet. in fact, their evidence ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers have detected a new ...