A new, hours-long Hubble study of the collision site revealed never-before-seen details of the neutron-star merger
At first, it was just another bright, fuzzy speck in the sky. But it may turn out to be something much more exciting: the second known object to hurtle through our solar system after leaving another.
Warps in the fabric of space-time can act like magnifying glasses, and that may help solve a cosmic mystery about the rate of the universe's expansion, a new study found.
The lost continent "Greater Adria" existed hundreds of millions of years ago after it broke off from Gondwana.
By spying on star clusters in a nearby galaxy, the Hubble Space Telescope has shown that star clusters aren't always as old as they appear.
NASA and the European Space Agency unveiled the new Saturn portrait by the Hubble Space Telescope today (Sept. 12), and it is absolutely jaw-dropping.
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.
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.
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.
Astronaut and medical doctor Serena Auñón-Chancellor weighs in on how experiments on the ISS help medical research on Earth.
Even in star clusters, families tend to stick together, and stellar "siblings" don't leave each other's sides for billions of years.
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