Stronger gravity requires stronger—and pricier—rockets to overcome.
There are about 400 subglacial lakes around the world, but these are the first scientists believe to be salty.
Are we looking for aliens in the wrong way?
"I think people didn't really think about [phosphorus]" in comparison to ingredients like carbon and water, Greaves told Newsweek. "It's kind of a nice opportunity to go, 'Look, this matters and it's not super hard.'"
Are we really alone?
"I think that in this century we are going to be finding life beyond Earth," said Jill Tarter, a scientist at the SETI Institute research center in California.
"That's actually what I would expect them to find." NASA's quest for exterrestrial life may have a fungus problem.
The same heavy elements that boost our economy could boost theirs.
If we keep making satellites at the current rate, nearby planets could spot us by 2200.
The state is welcoming all aliens and alien-seekers with a fresh itinerary.
Weak nuclear force is stronger than gravity, but weaker than, you know, strong nuclear force.
(Methane + carbon dioxide) - carbon monoxide = aliens?
Two new papers give us the best glimpse yet at Titan's surface.
The maps depict Earth's position relative to the sun, using pulsars that can remain active for billions of years.
China is seeking one of the few foreigners qualified to run the Five-hundred-meter Aperture Spherical radio Telescope, but there are some drawbacks.
The hacking collective says that NASA is about to announce that we are not alone. But things aren't quite that simple.
The ultra-cool dwarf star TRAPPIST-1 has seven roughly Earth-sized planets orbiting it, with three in the star's "habitable zone."
Rediscovered Winston Churchill essay is the first of three recently unearthed pieces on science he penned but never published.
Researchers searching for extraterrestrial intelligence are talking about a signal observed by a telescope in Russia.