A "deeply personal" set of images filmed by NASA astronauts which includes the first ever selfie taken in space has been ...

In 1962, Scott Carpenter launched into orbit in Aurora 7! He named his capsule "Aurora", because he viewed his flight as a "celestial event.

A rare August morning alignment brings Mercury, a thin crescent moon and the Beehive Cluster together in the predawn sky.

BepiColombo just imaged Mercury in a whole new light — mid-infrared light, to be precise. On the spacecraft's fifth flyby of ...

Based on my research, which include image composites of two flyby views of Mercury from the MESSENGER spacecraft, I conclude that Mercury has not cooled and shrunken as much as previously thought.

The summer solstice—the longest day of the year—has passed. That means we’re slowly losing daylight. But never fear: there’s still plenty of sun and late-night stargazing ahead of us this summer. Here ...

The new book "Gemini and Mercury Remastered" features iconic images from the earliest days of human space exploration ...

CAIRO (Jared Collins/CNN Newsource/WKRC) - Researchers have discovered two meteorites in the Sahara Desert that they believe may have originated from Mercury. Mercury, the closest planet to the sun, ...

Early risers are in for a spectacular show next week, when Jupiter, Venus and Mercury form a planetary lineup in the predawn sky on Sept. 1.