Are we alone in the universe? How likely is it that we will one day discover life beyond our planet? What’s called the Drake ...

Planets across the universe come in wildly different forms—from massive ocean worlds and frozen methane planets to high-gravity super-Earths and tidally locked worlds orbiting red dwarf stars. If ...

I am one of the 65% of Americans who believe that intelligent life exists on other planets. We have no way of knowing what level any of them have evolved to but I would guess that most are not at ...

Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...

Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder ...

It is one of the most famous questions in science, and it was asked, as legend has it, over lunch. Enrico Fermi, the ...

Earthlings, brace yourselves: the galaxy may be emptier than your last Tinder date. According to a new study, any alien ...

When it comes to the space sciences, nothing is quite as exciting as the search for alien life, and NASA thinks it has a good idea of where to look.

Beyond that, in the decades to come, we might be able to see the colours of an exoplanet’s surface, and determine if plant life might be present there. And then we can search for changes in a planet’s ...

Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that ...

President Donald Trump has alternated between skepticism and curiosity about unidentified flying objects (UFOs) and aliens, discussing pilots’ sightings, government secrecy, and his own access to ...