Sarah Lewin

After physicist Stephen Hawking's death at the age of 76 was announced early this morning (March 14), scientists, thinkers and many more took to Twitter to share their thoughts.

The web series "Stargate Origins" will release its final three episodes tonight (March 8) at 7 p.m. EST.

Saturn and its rings shine through the glare across the Cassini spacecraft's wide-angle camera in a newly released photo from the planetary mission.

Enormous disks of stars or debris can operate under the same rules as subatomic particles, changing based on the Schrodinger equation, which physicists use to model quantum-mechanical systems.

Syfy announced today (Feb. 23) that its space-adventure series "The Expanse" will return for a third season on April 11.

Two more 10-minute episodes of "Stargate Origins" are now available for paid viewers on Stargate Command.

A crewmember of the mock Mars mission HI-SEAS VI was admitted to the hospital yesterday morning (Feb. 19) after a minor accident, just a few days after the Hawaii-based simulation began.

A dark storm on Neptune, once big enough to reach from Boston to Portugal, is dwindling to nothing as the Hubble Space Telescope keeps watch.

The "Stargate" prequel series "Stargate Origins" has begun; the first three episodes are now live, and additional episodes are set to release at least once per week.

A new simulation explains the hole at the center of the Rosette Nebula that gives the cloud of interstellar gas and dust its distinctive rose-like shape.

Saturn's cratered moon Rhea passes in front of the hazy giant Titan in an image from NASA's Cassini spacecraft, which completed its mission by diving into Saturn in September.

SpaceX's giant new rocket, the Falcon Heavy, is set for its risky first test launch today (Feb. 6) from the historic Pad 39A at Kennedy Space Center in Florida.

The supermoon lunar eclipse on Jan. 31 is shaping up to be a spectacular spectacle as well as a boon for moon researchers, according to NASA moon scientist Noah Petro.