For generations, artists and science-fiction writers have imagined alien landscapes beneath twin sunsets. The image became iconic in popular culture long before astronomers confirmed that planets ...

If you thrill at the discovery of new exoplanets, hold tight. A sextuplet alien solar system has been glimpsed in exquisite detail, revealing six planets of varying mass, five of which are packed ...

Seven Rasmussen, an astrobiologist and author of the new book Cloudy with a Chance of Starships, gives readers a tour of the ...

For the first time, astronomers have seen the glow of alien planets circling sun-like stars. “This is a new era,” says the leader of one of the teams, Drake Deming from NASA’s Goddard Space Flight ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

For the first time, astronomers have confirmed the presence of an atmosphere around a rocky exoplanet orbiting within its star’s habitable zone, marking a major milestone in the search for life beyond ...

What would aliens actually look like? While simple life forms like bacteria may be common in the universe, complex intelligent life is likely rare. Movies often depict aliens as human-like, which is ...

Astronomers have identified a clue hidden in the light of certain stars that's already led them to discover seven new alien planets, with more expected to come. To be clear, these alien planets likely ...

There is no chance in hell our species will be able to reach another Earth-like planet in the Universe in the foreseeable future, so the only way we can get a sense of the habitability of such places ...

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time. If life spreads and changes planetary environments, it could leave behind ...

Before any astronaut ever sets foot on a distant celestial body, they must first find a place on Earth that mimics the harsh, unforgiving conditions of outer space. NASA and other space agencies spend ...