March's third, or final quarter moon phase will occur at 5:39 a.m. EDT (0939 GMT), as the moon appears in Earth's sky with its left half illuminated by direct sunlight and its rig ...

The Hubble and Euclid space telescopes caught a stunning portrait of a dying star at the heart of the Cat's Eye Nebula.

Now he’s brought his potent filmmaking toolbox to "War Machine," a new Netflix sci-fi thriller starring "Reacher's" imposing specimen Alan Ritchson, which smashed onto Netflix o ...

The new funds will go toward the development and production of Delphi, Lux Aeterna's prototype reusable satellite platform. The vehicle, which is about 3.6 feet (1.1 meters) wide and weighs 440 pounds ...

Jupiter's moons can have surprising effects on the world's displays of auroral lights by "stomping down" on the planet's gigantic magnetic environment. These surprising effects, detected in ...

The first-ever launch of SpaceX's upgraded Starship rocket is about a month away, CEO Elon Musk says.

"ULA’s Centaur (with minor modifications) is the only existing in-space propulsion stage capable of meeting the SLS upper stage design parameters and performance characteristics, while also meeting ...

"Over time, such a small change in an asteroid's motion can make the difference between a hazardous object hitting or missing our planet." ...

A newly discovered comet is rapidly brightening and could become visible from Earth — if it survives an extreme close encounter with the sun on April 4.

"The risk of harm coming to anyone on Earth is low — approximately 1 in 4,200." When you purchase through links on our site, ...

The gas giant Jupiter will appear to reverse direction in the night sky from tonight (March 10) onward, bringing an end to ...

A meteorite has crashed through the roof of a house after thousands observed a stunning fireball streak across the sky in ...