Scientists have been sure that they had a decent idea about the start of life on earth since decades. However, fresh studies ...

How can we know what life on Earth looked like more than three billion years ago, when rocks from that era are so rare and ...

In a new book, astrophysicist Mario Livio describes how the existence of life on Earth can be traced back to an RNA-based “protocell.” The following is an excerpt from Is Earth Exceptional?: The Quest ...

The origin of life on Earth has been mulled over by scientists for centuries. We now know that life’s building blocks are RNA, amino acids, and cells. But if life originated from the primordial ooze ...

Science Textbook Controversies “In 1969 the California Board of Education issued new guidelines for the biology curriculum of ...

How did the building blocks of life come together to spawn the first organisms? It’s one of the most longstanding questions in biology — and scientists just got a major clue. In a new study published ...

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

Who were our earliest ancestors? The answer could lie in a special group of single-celled organisms with a cytoskeleton similar to that of complex organisms, such as animals and plants. Ten years ago, ...