As Earth approaches warmer levels experienced earlier in its geologic history, it may be bad news for human survival.

By looking ever further back in time, the James Webb Space Telescope is at last revealing the first galaxies – and a very ...

Purple Earth Hypothesis suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for ...

The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...

Tar balls have popped up across South Florida, including in Indian River County over the weekend. Have you seen them on the ...

Hundreds of millions of Americans will have the chance in March to see the first total lunar eclipse in nearly three years.

Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.

When Earth first formed, it was too hot to retain ice. This means all the water on our planet must have originated from ...

Projections of our future under climate change paint a picture of extreme weather and acidified oceans, a world many of today ...

Sterling Klippel is awed by the beauty of nature but spends his working days resisting its power. Casting worried glances at ...

This is only the second time the species has been recorded while alive. “I thought it was A.I.,” says fish biologist Kory Evans.

A new study explains how two deep canyons formed very quickly on the moon during an asteroid impact. KNAU’s Melissa Sevigny ...