Swipe Down for Full Video Story You have just completed a seven month journey through deep space. Earth has faded into a ...

Before sunlight ever reached the planet, another force may have sparked life—electricity. Deep beneath the ocean floor, ancient hydrothermal vents might have generated natural electric fields strong ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that led to biology, or when the first primitive life forms appeared. But what ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. “It’s alive! IT ...

We have only one example of biology forming in the universe — life on Earth. But what if life can form in other ways? How do you look for alien life when you don’t know what alien life might look like ...

RNA, which is one of life's most crucial molecules dealing with the synthesis of proteins, could be common in the universe, according to a new experiment that shows how RNA could easily have formed on ...

We have only one example of biology forming in the universe – life on Earth. But what if life can form in other ways? How do you look for alien life when you don’t know what alien life might look like ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Life on Earth had to begin somewhere, and scientists think that “somewhere” is LUCA—or the Last Universal ...

How life arose remains a looming question in science that researchers are seeking to answer by studying the features shared among life today. Everything alive is made up of cells, and what made the ...