All the essential ingredients to make the DNA and RNA underpinning life on Earth have been discovered in samples collected ...

Asteroids would’ve supplied the raw materials, heat, and geologic plumbing to circulate prebiotic matter while also creating ...

The tiniest life forms are also among Earth’s toughest, from near-invincible tardigrades to extremophilic microbes that ...

A new study reveals all five fundamental nucleobases – the molecular “letters” of life – have been detected in samples from ...

A close-up of the surface of asteroid Ryugu. (MASCOT/DLR/JAXA) A new analysis of samples collected from asteroid Ryugu has yielded all five canonical nucleobases that make up RNA and DNA. It's not the ...

A remarkably hardy bacterium can survive pressures similar to those generated when asteroid impacts blast debris off Mars, a ...

A planet orbiting the star GJ 887 may be the closest object to Earth with good prospects for supporting life, although confirming that will not be easy. The newly discovered “super-Earth” with a mass ...

Scientists are trying to understand how complex life emerged on Earth about 2 billion years ago. Our microbial ancestors could be the key.

Over 4 billion years ago, as planets were coalescing around the newborn Sun, our star may have gone on an epic road trip across the Milky Way along with thousands of stellar "twins." And we may owe ...

Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

Around 2.3 billion years ago, the Great Oxygenation Event (GOE) marked a major turning point in Earth’s history. The increase ...