The alien planet K2-18 b would be a truly exotic vacation destination.
Two huge bubbles of radio energy swirling out of the Milky Way's middle could be evidence of an ancient cosmic explosion — or maybe the start of a new one.
NASA is hard at work getting its new, moon-bound rocket and spacecraft ready for Artemis 1, the next mission of the agency's program, which aims to eventually land humans on the lunar surface.
The only geologist ever to set foot on the moon thinks future lunar explorers should be a little more like him.
Astronomers are finding more and more alien worlds that may be capable of supporting Earth-like life, but none of them so far are carbon copies of our home world.
On the 18th anniversary of the 9/11 terror attacks, NASA astronauts paid tribute to the heroes who risked their lives to save others on that day by tweeting a special message from space.
In a major first, scientists have detected water vapor and possibly even liquid water clouds on a strange exoplanet that lies in the habitable zone of its host star about 110 light-years from Earth.
The dinosaur-killing asteroid that hit the Earth around 66 million years ago probably generated a huge tsunami, according to new research.
New Horizons made an epic flyby of a Kuiper Belt object to ring in the New Year — but scientists need brand-new observations to truly understand that data.
A pulsar 25,000 light-years away is wobbling in a weird way. But Einstein's theory of general relativity predicted it more than a century ago.
Two theoretical physicists propose a novel idea to find dark matter — and it might actually be testable.
Japan called off a planned cargo ship launch to the International Space Station today (Sept. 10) after a fire erupted on the launch platform for the mission's rocket, according to press reports.
ESA astronaut Luca Parmitano became the first DJ in space when he performed a set from the International Space Station.
Step outside this week as soon as darkness falls and look directly overhead, and you will see the famous and very distinctive trio of bright stars collectively known as The Summer Triangle.
Veteran launch provider Arianespace's parent Ariane Group has teamed up with the French space agency CNES for ArianeWorks, a project for reusable rockets.
The full "Harvest Moon" occurs Sept. 14, at 12:33 a.m. EDT (0433 GMT), a day after it reaches apogee, the farthest point from Earth in its orbit.
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