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

The Sun's polar regions are pretty busy and chaotic places, but our newfound views of its south pole will help predict future ...

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 ...

When sunspots erupt at nearly the same time, it could be something known as "sympathetic solar flares." A double eruption ...

In an era captivated by unidentified flying objects (UFOs) and government conspiracies, one former NASA official is cutting ...

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 ...