Hundreds of millions of years before oxygen surged in the atmosphere 2.4 billion years ago, swaths of oxygen winked in and out of existence in the ocean.

A new NASA and Toho University study, utilizing supercomputers, projects Earth's habitability timeline, revealing the ...

A piece of space junk called Cosmos 482 is unlikely to pose a threat to people or property. But space experts say it ...

Ever since its formation around 4.5 billion years ago, Earth's rotation has been gradually slowing down, and its days have ...

A meteorite found in Antarctica in 2012 suggests Earth may have formed with the materials needed to make water, a new study ...

A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, hot atmosphere.

The changes in ocean chemistry were gradual. The Archaean period lasted 1.5 billion years. This is more than half of Earth’s ...

Scientists thought La Niña was coming. It didn't — at least for now. What could that mean for this year's hurricane season, ...

How core-mantle differentiation influenced the distribution of volatile elements on Earth. Imagine Earth's history as a ...

NASA's Curiosity rover has uncovered evidence of a past carbon cycle on Mars. This breakthrough provides scientists with new ...

The Moon's surface is covered by impact craters, ranging from microscopic pits to massive basins over 1,000 kilometers across ...

On Earth, carbon dioxide moves between the air, oceans, and rocks in a balanced system. This study, published in Science ... atmosphere, by comparison, has about 400 millibars of carbon dioxide.