Astronomers discovered a planet that orbits its star so closely that its surface is being scorched into magma and vaporizing ...

From spellbinding images to groundbreaking scientific discoveries, we look back on some of Hubble's most exciting milestones.

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

The celestial image could be spoiled by a dull Saturn, which might lack the brightness needed to tie the smiley together, ...

With its beautiful rings, Saturn may be the most stunning planet in the solar system. It is the sixth planet from the sun and ...

In the years since, Hubble has gathered more than 1.6 million observations and 430 terabytes of data. The telescope has ...

The planet, roughly the mass of Mercury, orbits its star extremely close, so close that its surface is likely covered in magma evaporating into space. As it orbits its star in just 30.5 hours, the ...

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

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

WASHINGTON (Reuters) -Astronomers have spotted a small rocky planet that orbits perilously close to its host star ...

"These early images of Donaldjohanson are again showing the tremendous capabilities of the Lucy spacecraft as an engine of ...

Venus and Saturn will align with a crescent moon to create the illusion of a smiley face in the sky on the morning of April ...