(AP) - A spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole. The European and ... mathematician who contributed to NASA’s Mariner 10 mission to Mercury ...

Observers across eastern North America and much of Europe will have front-row seats to the striking partial solar eclipse on March 29. Here's what to expect.

Photographer Mario Tama didn’t think he would see much in the way of great scenery when he flew with NASA ... miles north of the Arctic Circle and about 950 miles south of the North Pole.

If you were to fly above Saturn and look down on the planet's hexagon with your naked eyes, you would probably see it has a blue and gold tinge, according to NASA. A photo of Saturn's north pole ...

A dishwasher-sized NASA satellite was launched into space from ... located in cold and permanently shadowed spots at the lunar pole. The bottoms of hundreds of craters at the moon's South ...

The country supports some of the world’s most important satellites. But experts worry about its proximity to Russia.