The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day.

Jul 11, 2025 · From forests to elk to microscopic phytoplankton, every living thing plays a role in shaping our planet. NASA studies life on Earth from above, tracking ecosystems and observing changes in …

Apr 7, 2025 · The evolution of life on Earth is one of the most awe-inspiring and complex stories ever told, spanning billions of years of transformation, adaptation, and survival.

Dec 13, 2025 · Even though elemental composition varies from star to star, from place to place on Earth, and from organism to organism, these comparisons are instructive: the composition of life is …

6 days ago · How life begins remains an unsolved question. One key component might be RNA, a molecular cousin of DNA found in every form of life on Earth, and now scientists say they have …

Below is a detailed chronological timeline highlighting the major milestones in the evolution of life on Earth – from the first signs of life in ancient oceans to projected future events like synthetic …

Jul 22, 2025 · It is the ultimate mystery of biology: How did life begin? A team of Harvard scientists has brought us closer to an answer by creating artificial cell-like chemical systems that simulate …

The timeline of life represents the current scientific theory outlining the major events during the development of life on Earth. Dates in this article are consensus estimates based on scientific …

6 days ago · All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA—and it likely lived on Earth only 400 million years after its formation.

Jul 31, 2025 · To understand the origin of life on Earth, we must first step back—far back—to the very elements themselves. The atoms that make up our bodies—carbon, hydrogen, nitrogen, oxygen, …