New experiments suggest RNA, life’s essential molecule, could have formed naturally on early Earth and even arrived from ...

IMAGE: A new study by CU-Boulder researchers indicates a thick organic haze shrouding Earth several billion years ago was similar to the one now hovering over Saturn’s largest moon, Titan. University ...

The study of early Earth microbial life and its associated organic matter provides crucial insights into the origins and evolution of life on our planet. Recent work has illuminated the remarkable ...

In an investigation to find out what sparked life on Earth, researchers have discovered that RNA formed through surprisingly ...

New research shows how RNA, a key molecule for life, may have formed on early Earth using simple chemistry and materials delivered by asteroid impacts, linking space science with the origins of life ...

The Earth and moon have been locked in a gravitational dance for billions of years. Each day, as the Earth turns, the moon tugs upon the oceans of the world, causing the rise and fall of tides. As a ...

Four billion years ago, our then stripling sun radiated only 70 to 75 percent as much energy as it does today. Other things on Earth being equal, with so little energy reaching the planet’s surface, ...