"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure ...

This image shows Mercury as a small black dot moving across the face of the Sun during its rare transit on May 9, 2016.  This image shows a gravity map of Mercury created using data from NASA’s ...

Mercury has long puzzled scientists as it possesses many qualities that aren't common to other solar system planets. These ...

The Mercury flyby of the MESSENGER (Mercury surface, space environment, geochemistry and ranging) probe was the first of three braking manoeuvres for the spacecraft, in preparation for its ...

Turns out, it's as tough to drop inward into the inner solar system, as it is to head outward. The problem stems from losing ...

It is a world of extremes. Explore facts about our solar system's fastest planet. Mercury is slightly larger than our Moon - 15,329 kilometres around its equator. Its radius, the distance from the ...

Meet the author: Dr. Phil Plait is an astronomer, author, and science communicator with a PhD in astronomy at the University of Virginia. He has written four books on astronomy and consulted on space ...

MESSENGER last year revealed another side of Mercury, color-enhanced to show the differences in surface geology. NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of ...

A research team, led by Professor Sung-Deuk Choi from the Department of Civil, Urban, Earth, and Environmental Engineering at ...