There are roughly a trillion species of microorganisms on Earth—the vast ... to use oxygen long before the Earth became ...

A new study reveals that Earth's biomes changed dramatically in the wake of mass volcanic eruptions 252 million years ago.

One way to look at President Donald Trump’s statement is to consider the value of Chinese exports to the U.S. In 2024, goods China exported to the U.S. amounted to $439 billion, less than half Trump’s ...