At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

Observations of exoplanets typically provide astronomers little more than an orbit, a mass and a radius. If the radius and ...

One of the big surprises: Despite the moon's cooled crust, the data shows Io maintains liquid hot lava just below the ground.

Galaxies speckle the heavens like stars in a stunning new photo of the deep and distant universe.

One of the most famous and beautiful cosmic sights shows its colors in this new image from the Hubble Space Telescope. The Veil Nebula is the remnant of a massive star which exploded in a supernova 10 ...

Hubble’s 35-year journey showcases humanity’s boldest space achievements, capturing everything from new stars forming to ...

It wasn’t until NASA’s James Webb Space Telescope (JWST) turned its eye to the scene that the story took an unexpected turn.

On April 24, 1990, the Space Shuttle Discovery blasted off from Kennedy Space Center, carrying the new Hubble Space Telescope ...

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

James Webb Space Telescope Sees Jupiter's Rings, Moons and Auroras Credit: Space.com | imagery courtesy: NASA, ESA, Jupiter ...

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 ...

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