HUNTING for aliens is now a little easier as scientists discover a new sign that gives away life on far-off planets. Importantly, this new signal teases the presence of alien life on distant ...

Until now, scientists have generally thought that planets ... of an Earth-like planet in this region around a star. The team's model focused on two processes: photosynthesis, which plants use ...

On Earth, they're mostly produced by bacteria, marine algae, fungi, and some plants ... on these worlds – but alien microbes could "thrive". "Unlike an Earth-like planet, where atmospheric ...

Scientists have discovered four new Earth-like ... planets are not expected to support life because of their closeness to Barnard's Star, they should be taken into account when searching for alien ...

Now for the not-so-exciting part: These planets, despite being rocky like Earth, are far too hot to ... While the planets themselves might not be home to aliens, they’re an encouraging sign ...

Scientists have identified a promising new way to detect life on faraway planets, hinging on worlds that look nothing like ... on Earth by bacteria, marine algae, fungi, and some plants.

Fossil fuels powered the industrial revolution. Would aliens need a similar power source to jump-start a technical revolution ...

Proctor/J. Pollard A quartet of Earth-like worlds, each about 20% to 30% the size of our planet, circle one of our closest stellar neighbors, a new study reveals. The rocky alien worlds are close ...

Are we alone in the universe? The answer to one of humanity's biggest questions is complicated by a basic reality: If there ...