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We now offer the Cool It! card game in our Science Store. Cool It! is the new card game from UCS that teaches kids about the choices we have when it comes to climate change.

Exploratour - Water on Mars

This image shows evidence for running water on the surface of Mars, or does it?
Click on image for full size
Courtesy of NASA

Introduction

This page is the start of the tour which explores water on Mars. Use the navigation button at the top of the page to move through the tour. To go to the next page, just press the forward link on the navigation button.

Evidence for running water, including river channels such as those shown here, can be seen on the surface of Mars, although there is no running water present today. These features suggest that there was water present near the surface at some time in the Martian past.

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Learn about Earth and space science, and have fun while doing it! The games section of our online store includes a climate change card game and the Traveling Nitrogen game!

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Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Mars Rover Landing Sites Selected

NASA will soon send two robotic rovers to Mars. The rovers are the main part of the Mars Exploration Rover (MER) missions. Rockets carrying the two rovers will be launched from Earth in May and June of...more

New Evidence for Water on Mars

Scientist have discovered more evidence supporting the theory that liquid water is on Mars. The Mars Global Surveyor took pictures showing channels that were recently made on the Martian surface. Scientists...more

The Largest Valley System in the Solar System

Scientists studying the features of Mars have discovered the largest known valleys in the solar system. These valleys and gorges lie beneath the surface of the planet, under ash, lava, and dust, and were...more

Newly Discovered Martian Lakes and Canyon!

Scientists have found lakes and a river in the highlands of Mars. They don't contain any water, but they may show that the cold, dry planet once had a very different environment where liquid water flowed...more

ExploraTour - Looking at the World in a Different Light

Even though the sleeping man is no longer on the bed, you can still see where he was lying down. The heat from his body warmed up the bed sheets which are now radiating infrared light toward your eyes....more

ExploraTour - Looking at the World in a Different Light

All warm objects (not just people) radiate in the infrared. Warmer objects give off more infrared radiation. Very hot objects radiate other types of light in addition to infrared. Click on the picture...more

ExploraTour - Looking at the World in a Different Light

Your eye is a wonderful detector of visible light. Different frequencies of light produce different sensations in the eye which we interpret as colors. Our eyes detect light by using light sensitive components...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF