Martian astronauts will need to be able to withstand the reduced gravity and increased radiation in deep space. And they'll have to find a way to deal with the boredom, experts say.

Next time you sip a humble glass of H2O, consider this: The story of water connects each of us to processes that shape our universe.

Shred a document, and you can piece it back together. Burn a book, and you could theoretically do the same. But send information into a black hole, and it’s lost forever.

NASA's spacecraft has detected an auroral glow across Mars's northern hemisphere, plus dust high above that has left planetary scientists perplexed.

Take a tour of one of the most important rooms at CERN.The Brain and Heart of CERN

This galaxy cluster comes from a sample of over 200 that were studied to determine how giant black holes at their centers affect the growth and evolution of their host galaxy,

Researchers wanting to know more about the influences of multiple stars on exoplanets have come up with a new case study: a planet in a four-star system.

A high-speed hydrogen cloud on a crash course with the Milky Way appears to be an exotic interloper, preliminary data suggest.

In a quest to find mismatched star pairs, astronomers have discovered a new class of binary stars — one star is fully formed while the other is still in its infancy.

Artist's concept of the recently discovered tightly packed and ancient exoplanetary system named Kepler-444.

The Moon has long been viewed as a crucial component in creating an environment suitable for the evolution of complex life on Earth,

Saturn’s Iapetus looks like nothing else we’ve ever seen. What made it so?

How do we keep a firewall between the planets to ensure microbes don’t cause havoc on Earth or Mars?

UC Berkeley physicists used partially entangled atoms identical to the qubits in a quantum computer to demonstrate more precisely than ever before - to one part in a billion billion - that space is uniform in all directions and not squeezed.

Earth's magnetic field is crucial for our existence, as it shields the life on our planet's surface from deadly cosmic rays. It is generated by turbulent motions of liquid iron in Earth's core. Iron is a metal, which means it can easil ...

Our very own Milky Way could be home to a giant tunnel in space time. At least, that's what the authors of a new study have proposed.

Rosetta mission would have to sacrifice other science to search for comet lander.

Eta Carinae, the most luminous and massive stellar system within 10,000 light-years of Earth, is known for its surprising behavior, erupting twice in the 19th century for reasons scientists still don't understand. A long-term study led by astron ...

The missing Mars robot Beagle2 has been found on the surface of the Red Planet, apparently intact.

When you think about all the Jupiter-sized exoplanets we've found, with plenty in the habitable zone, the allure of exomoons should become obvious.