NASA's discoveries reveal water's prevalence beyond Earth, from subsurface oceans on moons to vapor in exoplanet atmospheres.

ESA's Solar Orbiter deep-space probe has made history, returning the first-ever images of the Sun's south pole. It's a world first that sheds a great deal of light on the mysteries of our parent star, ...

NASA's Advanced Composite Solar Sail System (ACS3) will be visible from the ground. Find out when you can see it on the NASA ...

Researchers believe that 2017 OF201s highly eccentric orbit points to a chaotic origin, possibly caused by a gravitational ...

This material causes Titania and Oberon to have darker and redder leading hemispheres. These outer moons effectively shield ...

Retired NASA agent Joseph Gutheinz dismisses UFO claims, noting interstellar travel would take 70,000 years and suggesting ...

Given just how big space is, the solar system seems like it shouldn't be too mysterious. But there are actually plenty of ...

Webb telescope captured a rare image of 14 Herculis c, one of the coldest exoplanets ever observed, revealing new insights ...

The oceans are losing their light – and with it, possibly their life. A new study reveals more than 20% of the Earth's oceans ...

During the week ahead, watch for Mars in the evening sky as it moves its way slowly night by night, left to right, above the bright star Regulus in the constellation of Leo, the Lion, situated above ...

Tiny glass beads from Apollo missions reveal Moon's ancient volcanic eruptions through sparkling mineral coatings.

A leak in space and a leak on Earth have both been taken care of clearing the way for the next human spaceflight from the ...