This video starts with a simple question — does life really need DNA? — and then turns it into something much bigger. From ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The Milky Way galaxy has more than 400 billion stars in it. Over the last few decades, ...

You know how we're all dreaming about living on other planets someday? Well, turns out, to make that happen, we need to get creative with some enclosed ecosystems called biospheres. Enter Biosphere ...

An artist’s impression of the rocky, habitable-zone exoplanet Kepler-168b. Credit: NASA Ames/NASA/JPL–Caltech/Tim Pyle (Caltech) New research suggests that technological civilizations in the Milky Way ...

It’s a sweltering Tuesday in Washington, D.C., the kind of day that stretches the definition of Earth as a “habitable” planet. But on an eighth-floor terrace near the U.S. Capitol building, dozens of ...

"Although ETIs might be rare, there is only one way to really find out, and that is by searching for it." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

The analysis places particular emphasis on the role played by plate tectonics. As Earth’s plates move over time, they trigger the carbon–silicate cycle, which gradually alters the amount of carbon ...

Imagine if the nearest intelligent aliens were not across the street, not across the solar system, but on the far side of the Milky Way, some 33,000 light-years away from Earth. That’s the scenario ...

A Ph.D. student and his supervisor have developed a simple way to test for active life on Mars and other planets using equipment already on the Mars Curiosity rover and planned for future use on the ...

Scientists reveal simple way to test for life on Mars using kit already on the Curiosity rover A PhD student and his supervisor have developed a simple way for testing for active life on Mars and ...

In April, scientists announced that they had used NASA’s James Webb Space Telescope to find a potential signature of alien life in the glow of a distant planet. Other scientists were quick to ...