ZME Science on MSN

A Soft Collision in the Early Solar System May Explain Mercury’s Giant Metal Heart

In the crowded early Solar System, young planets frequently collided and reshaped each other. But Mercury stood out. It formed unusually close to the Sun. Mercury’s days are longer than its years. It ...
Today In The Space World on MSN

First Real Images of Mercury Reveal the Unexpected

Mercury is small, but full of surprises. Discover its frozen poles, strange craters, and active magnetic field in this deep ...