Before Apollo astronauts set foot upon the moon, much remained unknown about the lunar surface. While most scientists ...

For former NASA space cadet Ron Garan, 63, there was only one thing on his mind when he was up in space, and it was the ...

NASA's Landsat 8 satellite snapped a stunning top-down view of an "unusually spectacular" Mount Etna eruption. Infrared data makes the volcano's lava river really pop.

The ripples suggest that the lake was free of ice at one point.

The astronauts themselves have repeatedly pushed back on the narrative that they are ‘stranded’ or have been left in space ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

A red-hot lava flow two miles long has been attracting crowds to the slopes of Mount Etna on the island of Sicily, Italy.

Spend 8 minutes with an image that has changed astronomy forever - the first-ever deep field view of galaxy cluster SMACS ...

Storms that swept across the American southeast caused multiple rivers in the state to overflow, killing nine and forcing the ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

Here are today's general risks from asteroids or comets both tiny and very large. Importantly, even relatively small rocks ...

Scientists didn't expect that stars would be able to still form in the dwarf galaxy known as Leo P, which the James Webb Telescope recently imaged.