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.

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.

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 …

6 days ago · 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 …

Mar 14, 2025 · Learn what fossil evidence reveals about the origins of the first life on Earth, from bacteria to animals, including the phyla we know today.

Dec 11, 2025 · In many submerged regions, murky mud shelters strange life-forms that seem to be the key to one of the biggest mysteries of life on Earth. These creatures belong to a domain of life called …

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 …

The origin of life on Earth stands as one of the great mysteries of science. To find out if we are alone in the galaxy, we will need to better understand what geochemical conditions nurtured the first life forms.

4 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 …

The Phanerozoic Eon (Greek: period of well-displayed life) marks the appearance in the fossil record of abundant, shell-forming and/or trace-making organisms. It is subdivided into three eras, the …