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

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 rocky with a solid surface that is filled with craters. Mercury takes 59 Earth days to complete one rotation on its axis and 88 Earth days to complete one revolution around the Sun.

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 ...

Mercury’s is much weaker than Earth’s, but studying its geometry and origin—along with the planet’s surface features and composition—“offers a window into the processes of planet ...

Its radius, the distance from the core's centre to the surface, is 2,440 kilometres. Mercury is about 2.6 times smaller than Earth. How hot is Mercury? Mercury's sun-facing side is scorched by ...

The modelled observations yield a surface field of 230–290 nT that ... Assuming that the dynamos of Earth and Mercury have driving forces that scale similarly, Mercury's slow rotation (its ...

The annual Lyrids meteor shower will appear in April after this month's "pink" full moon. Later this month, the crescent moon will be visible near Venus, Saturn and Mercury. The only full moon visible ...