As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

Mercury, the smallest planet in our solar system and the one closest to the Sun, has long baffled scientists with its twisted ...

The smallest planet in our solar system is also one of the most extreme—a sun-scorched, metal-rich world with a puzzling ...

A recent study indicates a small chance that Earth could be ejected from our solar system due to passing stars. Simulations ...

Mercury is a planet of extremes. With a total volume little more than the Moon, it is the smallest planet in the Solar System and is situated the closest to the Sun. Mercury has no atmosphere to ...

In the latest shutdown, the cosmic ray subsystem experiment on Voyager 1 and Voyager 2’s low-energy charged particle ...

Hold tight, the solar system is going to get bumpy in a few months. Mercury retrograde is on its way. Maybe you've heard people lament over the astrological phenomenon, blaming their woes on the ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.