Those that go into HEO, or as Phobos-Grunt was meant to do, off to Mars, absolutely do need that protection.

FORBES: Phobos-Grunt Falls From the Sky. Tim Worstall Not Blamed

It's often said that we know more about the surface of the Moon or even of Mars than we do about the two-thirds of our planet covered by water.

BBC: A deep sea mission of genuine exploration

The students, aged from seven to 24, were asked to develop an experiment to test anything humans may "want to take or do on Mars in the future".

BBC: Space capsules sent from Somerset school go missing