Add Yahoo as a preferred source to see more of our stories on Google. Mercury, the closest planet to the sun, is only slightly larger than Earth's moon and is pockmarked with craters. The planet is ...

We have just entered a very favorable period for observing the so-called "elusive" planet Mercury. From now, until about May 13, you should be able to find it with not much difficulty. But how well do ...

This is a photomosaic of images collected by Mariner 10 as it flew past Mercury. It shows the planet's southern hemisphere. The spacecraft took more than 7,000 images of Mercury, Venus, the Earth, and ...

On November 11, 2019, Earth will witness Mercury transit across the Sun. 1.) Over 3 billion people could experience it. Wherever the Sun is visible between 12:35 and 18:04 UT, it will display ...

For those who like to hunt for treasure, May offers nice views of the solar system’s most elusive naked-eye planet. Mercury appears as a pale-yellow dot low in the west-northwest during evening ...

NASA's Messenger probe is set to make history tomorrow night (March 17), when — if all goes well — it will become the first spacecraft ever to enter into orbit around the planet Mercury. Subscribe to ...