Researchers propose that tiny mineral nanoparticles may have been the hidden engines that transformed Earth’s early chemistry ...

The early four-legged animals, the tetrapods, were the forebears of today’s mammals, birds, reptiles, and amphibians. The post Fossilized babies of ancient predators show how life on Earth was like ...

The emergence of the first biopolymers and their building blocks on the early Earth is considered a key moment in the origin of life (OoL), but how life began on the prebiotic Earth from a pile of ...

Scientists suggest Earth's earliest animals reproduced asexually, slowing evolution and delaying the biodiversity boom that ...

In his 1989 book Wonderful Life, the late Harvard scientist Stephen Jay Gould imagined rewinding life’s history to an early ...

Earth’s earliest animals may have held evolution back because they reproduced asexually, creating low-competition communities ...

Vegetarians need not worry yet—plants will be on Earth for a long time to come. But not forever. The sun will ultimately ...

Two astronauts in full spacesuits with backpacks on a space walk with tethers, facing each other with hands out. The astronauts are in front of planet earth and some distant stars are also visible.

“Using a bombardment history model to infer the cumulative effects of recurring impacts, we estimate that the upper 5-mile (8-kilometer) shell of the Earth’s crust likely was highly permeable 4.3 ...