"We've got a chance to make Earth look that way," said the mathematician.

Earth might once have looked like that, millions of years ago - and you would be the first to spot it.

First let me show you what Earth looks like now.

Earth - 2 months ago His parents look really happy and they're still married which is great.

What will the Earth look like in 5,000 years?

What would Earth look like if there weren't any greenhouse effect at all?

During the 1960s, the first humans in space could see how the Earth looked alike as a whole.

We got the screen working, and Earth looked all right, or at least as we expected.

Most people believed them because the Earth did indeed look flat.

Earth looks blue when seen from outer space by astronauts.