14 Quotes by Alfred McEwen

Learning more about where the water is today and where it was in the past will also guide future studies about whether Mars ever supported life.

It could have implications for moons outside the solar system. It gives us lots to ponder in terms of physical science as far as the energies it takes to produce these (plumes).

Mars is the most habitable planet accessible to us. It's not extremely cold or hot. It's possible to imagine human colonies on Mars.

While a little bit of heat is produced by radioactive decay, this is a very small world and that (heating) is pretty minor.

We know that rocks have been transported from Mars to Earth. It's possible that life existed only on Mars at one point. It's possible that rocks could have carried spores and life to Earth and that we're Martians.

At this point we have an idea that water is probably abundant on Mars in the form of ice. It's not a matter of finding water on Mars but learning its importance in climate change ... and clearly it has been important to shaping the landscape.

These are random targets, and they don't hit what we know are the greatest areas of interest on Mars.

Any place where there's liquid water, there's life.

They are sharp, clear, and beautiful. I am very happy.