Earth may have won a cosmic chemistry lottery. Researchers found that during the planet’s earliest formation, oxygen had to be in an extremely narrow “Goldilocks zone” for two life-essential elements, ...

Meteor impacts may have helped spark life on Earth, creating hot, chemical-rich environments where the first living cells ...

Scientists explain how simple chemicals, deep sea vents, and meteor impacts may have helped life begin on Earth.

Asteroid impacts may have helped kick-start life on Earth by creating hot, chemical-rich environments ideal for early biology. These impact-generated hydrothermal systems could have lasted thousands ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit. A new study shows that Earth formed under ...

The theory of panspermia holds that life is spread through the cosmos via asteroids, comets, and other objects. When the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." How life emerged on rocky planets such as Earth (and possibly Mars) has been an enduring mystery. It most ...

Scientists are using molecular clocks and genomic data to trace the origins of LUCA and LECA—life’s earliest common ancestors ...

Every organism alive on Earth, from oak trees to octopuses to the bacteria in our gut, belongs to a single extended family. Genetic evidence points back to one ancestral cell, a last common forebear ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Life on Earth had to begin somewhere, and scientists ...

Have you ever wondered how we got here on Earth, and how it all began? From the Archean Eon to the Holocene Epoch, some ...