Marcus Chown

By combining them in different ways

By convention there is sweet

Iridium is not abundant on the surface of the earth

ignited fossil fuel deposits and the smoke turned day into night

And ponder what we would do if

tens of millions of years would be required for one to reach its full height

could fire magnetic missiles at our planet

The sun is not a rigid body.

he was able to make a courageous leap of the imagination.

heading off to a rendezvous with Saturn