If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, ...

For a lot of people, summer brings the opportune time to look out at the night sky, whether with a telescope or binoculars, ...

At the headquarters of U.S. Space Command in Colorado Springs, military planners are racing to a very earthbound deadline as they draw up plans for how they might fight the first major war in space.

Researchers at Utah State University are working with NASA to develop a hybrid rocket motor that could help astronauts land ...

"The expanding-Earth theory had the merit of explaining with a fixist model the evidence of ancient continental connections," ...

The James Webb Space Telescope has observed two large planets at different stages of infancy - one with an atmosphere ...

Whether or not you believe in astrology, these insights provide answers — and that’s more reassurance than many Americans are ...

Despite its name, you shouldn't expect the moon to visually look pink or red in color as it rises above the horizon.

In a stunning reminder of our place in the vastness of space, a remarkable image taken by NASA’s Cassini spacecraft shows ...

Jupiter’s ice-covered ocean moon Europa floats above the planet’s Great Red Spot in this 1979 image from Voyager 1. This is a ...