Despite the fact that humans landed on the moon many times during the Apollo missions half a century ago, doing so remains a tough business.
A new, hours-long Hubble study of the collision site revealed never-before-seen details of the neutron-star merger
A bright speck in the night sky may be the second known object to hurtle through our solar system after leaving another.
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.
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.
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.
Hundreds of orbiting comets and asteroids are thought to present some risk of colliding with Earth, but the threat is typically very small.
An uncrewed Russian Soyuz returned to Earth Friday (Sept. 6), bring a humanoid robot home to wrap up first-of-its-kind test flight to the International Space Station.
India's daring moon mission, Chandrayaan-2, lost contact just above the lunar surface, dashing Indian dreams of becoming just the fourth country to successfully land on the moon.
Scientists spotted a mysterious blast of intense X-ray light flashing out of the distant Fireworks galaxy, and it's no mere supernova.
Astronomers have detected a neutron star system blasting X-ray light at Earth and detected a rare, months-long pattern in those light bursts.
Scientists are analyzing data from the Labor Day auroral light show to find out if a phenomenon known as STEVE was part of the picture.
The team of researchers that captured the first direct image of a black hole was honored with an "Oscar of Science" — the 2020 Breakthrough Prize in Fundamental Physics.
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