Slow orbital changes caused pulses in Earth's oxygen cycle 500 million years ago, which spurred explosions of animal life.

For roughly 2 billion years of Earth's early history, the atmosphere contained no oxygen, the essential ingredient required ...

An international team led by researchers from the Department of Earth and Planetary Sciences at The University of Hong Kong ...

The planet has been flipping between two main modes of carbon recovery depending on the state of coral reefs, new research ...

Scientists have discovered that complex life began evolving much earlier than traditional models suggested. Using an expanded ...

Fossil skulls reveal how extinct mammals smelled the world, with new research linking olfactory bulb size to gene counts.

Fresh evidence suggests early Earth wasn’t locked under a rigid stagnant lid but was already experiencing intense subduction.

How far could life go — in space and in time? Life Beyond – Chapter 1 explores the possibility of alien life in the context ...

As humanity prepares to take its first steps on Mars, a comprehensive report released by the National Academies of Sciences, ...

A new study reveals how specialized microbes might convert Martian regolith into durable, life-supporting structures. Since ...

Fossilized footprints found in both Laetoli, Tanzania, and Trachilos, Crete, may be the earliest evidence of upright walking.

The researchers described the scene in a recent publication, calling it “an extraordinary colonial spider community.” The ...