A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

Amazon is far behind SpaceX in the market for consumer broadband service from space. Amazon aims to launch 3,232 Kuiper ...

The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. In 1983 ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in ...

NASA scientists have sought to understand planet Jupiter, the gas giant whose mass is more than the rest of the planets in ...

ESA's Solar Orbiter captured a "tube of cooler atmospheric gases snaking its way through the Sun’s magnetic field," according ...

Part of a spacecraft that has been stuck in orbit for 53 years is due to reenter Earth’s atmosphere around May 10 and could ...

A newly released image of the sun captured by the world's largest solar telescope shows the surface of our nearest star in ...

CAPE CANAVERAL, Fla. (AP) — A Soviet-era spacecraft meant to land on Venus in the 1970s is expected to soon plunge ...

McClain, an Army colonel and helicopter pilot, should have taken part in the first all-female spacewalk in 2019, but there ...

The mission team knows Lunar Trailblazer's precise position thanks to ground-based tracking, NASA officials said the update.

The presence of another planet in the solar system could explain the odd movements of some of the bodies in the Kuiper Belt.