NASA

Data from an old NASA spacecraft reveals a volcano erupted on the surface of Venus in 1991, a new study in Science says.

Scientists are pondering how to tell time on other celestial bodies. It's a lot harder than you might think.

NASA's Double Asteroid Redirection Test slammed a spacecraft into an asteroid, directly altering its path through space. Scientists are still studying the space rock to learn more.

NASA's Mars Reconnaissance Orbiter snapped the uncanny photo in December. Eyes are formed by craters. A hill with a "V-shaped collapse structure" resembles a snout.

There was no reason for alarm, as a NASA engineer called it "one of the closest approaches by a known near-Earth object ever recorded." It was only 2,200 miles above the Earth's surface.

The exoplanet was found using a satellite and spectrography. It has a similar size as Earth, but is much hotter and completes its orbit around its star in two days.

NASA successfully crashed a spacecraft into an asteroid in a test of planetary defense. Now it will determine whether the mission was able to alter the asteroid's course.

The launch of the uncrewed space vehicle was scheduled for Tuesday but is being pushed back because Tropical Storm Ian might hit Florida next week as a hurricane.

The last time scientists caught such a clear glimpse of Neptune's rings was when Voyager 2 flew past the distant planet in 1989. Now the James Webb Space Telescope has delivered a crisp new image.

On the anniversary of President Kennedy's speech on the race to the moon, we look at the dramatic advances in U.S. space science, from commercial flights and missions to Mars to the Webb telescope.