After five months on display in "Space City," the historic NASA spacecraft that carried the first astronauts to land on the moon is now destined for the "Gateway to the West."
Astronomers say there are 100 billion to 200 billion galaxies in the universe. But accurately counting the number of galaxies depends on several factors.
In the 1500s, when most believed Earth was the center of the universe, Nicolas Copernicus proposed his theory that the planets revolved around the sun.
Stephen Hawking's final research paper could help astronomers find evidence that our universe is just one among many in a larger "multiverse," according to media reports.
There might be a massive, dead star out there that bends the stuff of raw vacuum and prevents itself from collapsing into a black hole.
A space helmet "theater" showed me an astronaut's view of Earth.
Our solar system's first known interstellar visitor is likely even more alien than previously imagined, a new study suggests.
Orbital ATK announced March 13 it is developing a new version of a satellite life extension vehicle intended to provide more flexibility to customers while also moving the company closer to more advanced in-space servicing.
The rise of the largest volcanoes in the solar system may have led Mars to possess oceans hundreds of millions of years earlier than previously thought, a new study finds.
The return-to-flight mission will carry an experimental, 300 Gbps telecommunications satellite based on a new, large DFH-5 satellite platform. Future DFH-5's will deliver 1 terabit per second, up from the current 20 Gbps with DFH-4.
Graphic designers reveal how they translate hard science collected by Hubble into some incredibly artistic designs, while keeping the science as accurate as possible.
The seven rocky planets circling the nearby star TRAPPIST-1 have lots of water, a new study suggests — perhaps too much to make them good bets for life.
Rogue moons, torn from their planets and flung outward to drift through space, may be as common as stars in the universe, a new study finds.
On March 19, 1964, NASA unsuccessfully attempted to launch a satellite called Beacon Explorer-A on a mission to study the ionosphere. See how it happened in our On This Day in Space video series.
Space radiation may be a bigger worry for voyaging astronauts than scientists had thought, at least in the near future, a new study suggests.
Rep. Mike Rogers: "I am so excited to have the support of President Trump as we work towards this goal" of creating a space force.
A NASA investigation into a 2015 SpaceX launch failure concluded a design flaw, rather than a manufacturing defect, likely initiated the chain of events that destroyed the vehicle.
A new photo shows a swirling maelstrom on Jupiter through rose-colored glasses.
Those inspired by Stephen Hawking's classic book "A Brief History of Time" and by his legacy in cosmology are now picking up where Hawking's genius left off.
UK's Astronomer Royal Martin Rees shares his memories of the late star physicist Stephen Hawking.