Related topics: nasa · asteroid · sun · moon · atmosphere

How much life has ever existed on Earth?

All organisms are made of living cells. While it is difficult to pinpoint exactly when the first cells came to exist, geologists' best estimates suggest at least as early as 3.8 billion years ago. But how much life has inhabited ...

How magma and water shaped the iconic Columbia River Gorge

University of Oregon researchers are adding new details to the geological history of the iconic Columbia River Gorge, a wide river canyon that cuts through the volcanic peaks of the Cascades along the border between Oregon ...

Everlasting African wildfires fueled by aerosol feedback

Africa is on fire. It has been for thousands of years. The continent contains more than 50% of the total area on Earth that is burning, on average, and there is no sign of it stopping; indeed, the migrating, hemisphere-hopping ...

The feline frontier: NASA sends cat video from deep space

NASA on Monday announced it had used a state-of-the-art laser communication system on a spaceship 19 million miles (31 million kilometers) away from Earth—to send a high-definition cat video.

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