The $20bn rocket launches on its fourth attempt, a milestone in the Artemis program that will eventually carry astronauts to the moon.
An undulating 'snake' of plasma shoots across the sun in a new video from the European Space Agency.
Albert Einstein’s theory of general relativity has been remarkably successful in describing the gravity of stars and planets, but it doesn’t seem to apply perfectly on all scales.
A new study of white dwarfs with "polluted" atmospheres is causing scientists to rethink how and when planets form.
Roughly half the space shuttle Challenger, which tragically exploded in 1986, remains missing. Now, one more piece has come to light off the Florida coast.
A man has claimed that the fire that burned down his house in California was started by a fireball meteor, which was spotted by several witnesses in the area. But firefighters are still trying to determine what started the blaze.
A new study using lunar samples obtained by China's Chang'e 5 rover has revealed how the moon was able to remain volcanically active even after its mantle began to cool.
An uncharted region of space known as the "zone of avoidance" lurks behind the Milky Way's center – and astronomers just found an enormous, multi-galaxy structure there.
The total lunar eclipse that unfolded on Nov. 8 was the last one for the next three years, according to astronomers.
The moon will pass through the darkest part of Earth's shadow for nearly 90 minutes on Tuesday, but only viewers in part of the world will be able to see it.
November’s full moon, also known as the Beaver Moon, rises on Nov. 8 during a total lunar eclipse. Here’s how to watch.