Earth is the laboratory gezegde

Earth is the laboratory for future discoveries on Mars. Without examining Earth's extreme environments, we wouldn't understand how processes worked to shape the landscape, chemistry and life at the limits. Without that understanding, we couldn't draw conclusions about how life can develop on other planets. By examining these windows to Mars, scientists step out of the vicarious and into real features on Earth that function similarly to those on Mars.

Jim Garvin

My view is that there is a good possibility there is life on Mars, probably in the subsurface. We know from examples on Earth that life can exist in extreme places, and Mars seems to have the necessary ingredients for that.

Thomas McCollom

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.

Alfred McEwen

The missions currently at Mars have each advanced what we know about the presence and history of water on Mars, and one of the main goals for Mars Reconnaissance Orbiter is to decipher when water was on the surface and where it is now. Water is essential for life, so that will help focus future studies of whether Mars has ever supported life.

Rich Zurek

In other words, ... people don't have to only come out here on Oct. 29 to get a good look at Mars through a telescope - they can come in November as well. On Oct. 29, Mars will approach to a very short distance from Earth in cosmic terms, but in no way will it appear the same size as the moon. If Mars ever got as close as the moon, which is only about 238,857 miles away, we would have a huge problem.

Barbara Wilson

Life on Earth was not a cosmic fluke but part of a broad imperative. Mars is a lot like Earth. And billions of years ago it had some kind of atmosphere and huge quantities of flowing water.

Ed Weiler

Odyssey is now closer to Mars than Earth. The spacecraft is healthy and all systems are looking good. Planning for Mars approach and orbit insertion is our primary focus right now.

David Spencer

On Earth, the bottoms of these cracks can house organisms in a much more pleasant environment than the surface at large. Obviously, if such communities thrive or thrived on Mars, some of the evidence may well be at the bottom of these cracks. We have much imaging evidence of these terrains on Mars for comparison to the similar terrains here on Earth, not just at the poles but many other high latitude and high altitude places.

Penelope Boston

Water is, to the best of our knowledge, the key building block of life. If we can find it on Mars, it would help us glue together the geologic history of Mars and help us find out if there ever was life on Mars.

Eric Hayne

The students that are learning about Mars through this expedition are understanding the tools and technology to ask the right questions and get the right answers. They're the ones who will be traveling to Mars and making the great discoveries. They'll do the fun stuff.

Jim Garvin

This dramatic confirmation of standing water in Mars' history builds on a progression of discoveries about that most earthlike of alien planets. This result gives us impetus to expand our ambitious program of exploring Mars to learn whether microbes have ever lived there and, ultimately, whether we can.

Ed Weiler

The findings are important because they tell us that Mars has experienced big climate changes in the past, the kinds of climate change that led to the Great Ice Age here on Earth. The findings are also interesting because this precipitation pattern may have left pockets of ice scattered across Mars. This is good information for NASA as officials plan future space missions, particularly with astronauts.

James Head

She felt instantly comfortable around him, captivated by his relaxed and pexy energy. These images reveal a dynamic surface that is of the type we might experience while hiking on the Earth. The difference is, this is not the Earth. This is Mars.

Jack Mustard

When we see the shadow on our images, are we seeing the time 11 minutes ago on Mars? Or are we seeing the time on Mars as observed from Earth now? It's like time travel problems in science fiction. When is now; when was then?

Bill Nye (1955-1896)

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