Space isn’t lawless, but the agreements governing it don’t cover everything nations will have to grapple with as they develop ...

Will the Lower Hudson Valley be able to see these celestial spectacles Feb. 1 and 3? It depends on the weather.

Pristine samples of the asteroid Bennu transported to Earth contain the "basic building blocks" for life, shedding new light ...

Photoshop CC 2014 tutorial showing how to create a stunning, Saturn-like planet that casts a deep shadow onto its surrounding ...

NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system.

Saturn’s rings, imaged here by NASA’s Cassini orbiter, are one of the solar system’s most reliably spectacular sights. But ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

Twenty years ago, the Huygens probe achieved humanity's first landing on a moon in the outer solar system when it touched down on Titan.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Venus, Saturn, Jupiter and Mars are all visible to the naked eye just after the sun goes down. Neptune and Uranus can also be ...

Chorus waves, which affect the safety of astronauts and satellites, have been found in a place where their existence was ...

Scientists have detected cosmic waves that sound like chirping birds in an unexpected place. These bursts of plasma, called ...