BepiColombo aims to shed light on several mysteries about Mercury, including the formation of its magnetic field, the composition of its surface, and the interactions between the planet's thin ...

Mercury is about 2.6 times smaller than Earth. How hot is Mercury? Mercury's sun-facing side is scorched by temperatures of around 430°C, hot enough to melt lead. Without a substantial atmosphere to ...

Mercury has made a rare transit, where the planet passes across the face of the Sun as seen from Earth. During the transit, Mercury appeared as a dark silhouetted disc against the bright surface ...

Since is has almost no atmosphere to retain heat, Mercury's surface experiences the greatest temperature variation of all the planets, ranging from 100 K at night to 700 K during the day.

In astronomy, what does retrograde mean? And what connection does it have to astrology? We explain how planets move across ...

The surface temperature can range from 800 degrees to minus 290, and the planet has almost no atmosphere. The next mission to ...