The "Blue Marble" was the first photo of the whole Earth and the only ever taken by a human. Fifty years on, new images of ...

For 35 years, the Hubble Space Telescope has taken photos of celestial objects across the universe. Look back at 10 photos ...

"You could pull up Google Earth images of places like Utah, zoom out, and you’d see the similarities to Mars." ...

The mission, jointly operated by the United States and India, will measure minute changes to land, ice, and ecosystems around ...

The Daniel K. Inouye Solar Telescope, the world's largest solar telescope, can see the sun in unprecedented detail. Here is ...

New research suggests ancient Mars may have been warm and wet, with rainfall or snowmelt carving its iconic valleys.

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

Scientists have known for a while that Saturn's largest moon, Titan, has rivers and seas of liquid methane on its surface.

The sun may rise every morning, but the amount of sunlight reaching Earth's surface can substantially ... long-term monitoring both from the surface and space." There are challenges, however ...

A molecule detected on a planet 124 light-years away is produced on Earth by decaying phytoplankton and other microbes. There ...

Most meteorites are small — pebble-sized or smaller — chunks of rocky material that, in most cases, get buried in the soil or ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles ...