Answers Quote by Steve Squyres

The more we look at the kinds of soils and the nature of the atmosphere and the polar caps, it all adds up to…

— David Grinspoon

There should be a water table on Mars.

— Heidi Hammel

Water is the key to life, but in frozen form, it is a latent force. And when it vanishes, Earth becomes Mars.

— Frans Lanting

Mars once was wet and fertile. It's now bone dry. Something bad happened on Mars. I want to know what happened on Mars so…

— Neil deGrasse Tyson

Most of the planet is covered with water, so there must be a clue to its worth in that fact.

— Chris Eubank Sr

We have seen pictures [of mars] where there there are canals, we believe, and water. If there is water, that means there is oxygen.…

— Dan Quayle

You may have heard this, that NASA discovered water on Mars When he heard about the water on Mars, President Bush said, 'Is it…

— Craig Kilborn

The trouble with water-and there is trouble with water-is that they're not making any more of it. They're not making any less, mind, but…

— Marq de Villiers

Mars is essentially in the same orbit. Mars is somewhat the same distance from the Sun, which is very important. We have seen pictures…

— Dan Quayle

The question is not so much whether there is life on Mars as whether it will continue to be possible to live on Earth

— Immanuel Kant

Mars, we know, was once wet and warm. Was it home to life? And what can living and learning to work on its rust-colored…

— Buzz Aldrin

The amount of water on the planet does not change, only its quality.

— Walter Munk