About 4 billion years ago, Earth began to show signs of the conditions that allowed the first cells to take hold and populate ...

New research from Portland State University focused on identifying signs of life—biosignatures—in extreme environments here ...

Hycean worlds, which are a possible kind of exoplanet with deep oceans surrounded by a thick envelope of hydrogen, could ...

A devastating meteorite strike over three billion years ago may have been just what early life needed to thrive. While it’s ...

However, there might be subtle signs once in a while, that this is not your first life on earth. Here they are... Remember the sudden urge of emotions you feel once in a while - happy, sad or just ...

Researchers have made a new discovery that changes our understanding of Earth's early geological history, challenging beliefs ...

A new study suggests that this organism likely lived on Earth only 400 million years after its formation. Further analysis also shows that this life form likely sported an early immune system, which ...

but the tiny sparks made by crashing waves or waterfalls that jump-started life on this planet. "On early Earth, there were water sprays all over the place -- into crevices or against rocks ...

However, no lab has yet been able to present a comprehensive, certain pathway to the formation of RNA, DNA and the first cellular life on Earth. Many biological molecules are chiral, meaning they ...

Her team’s findings open the door to new research into how ancient meteorites shaped life on Earth. They plan to search for other chemical signs of early life, looking at how microbes may have ...