Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...

This first light, as it's called, shows that all of the spacecraft's systems are working just as expected. "Based on the ...

Saturn has "gained" a staggering 128 new moons in a groundbreaking discovery by astronomers in Taiwan. The find, made by a ...

SpaceX launched the private Fram2 mission Monday (March 31), sending a crew of four spaceflight rookies into an orbit never ...

To do that, humans have built some of the most spectacular astronomical observatories around the world, capable of peering into the vast void of space and capturing images that astound. The James Webb ...