Mysteries of the planet Mercury to be revealed


A US spacecraft will make history in the next few weeks when it becomes the first to enter orbit around the planet Mercury.

Scientists are keen to learn much more about the planet which is the smallest in our solar system as well as the closest to the Sun.

Pallab Ghosh reports.

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.