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Exploratour - Comparing the Surfaces of Earth and Mars, Page 1 - Windows to the Universe
Exploratour - Comparing the Surfaces of Earth and Mars
Mars is about 1/3 the size of the Earth, as shown in this drawing.
NASA
This page is the start of the tour which compares the surfaces of Earth and Mars. In this tour we will describe and compare some features of the surfaces of both Earth and Mars. Use the navigation button at the top right of the page to move through the tour. To go to the next page, just press the forward link on the navigation button.
Mars is much smaller than the Earth, with a diameter 53% as large as Earth and a mass of about 11% that of our planet. It has no oceans, trees or other visible forms of life on the surface. We will show in this tour, however, that Mars has many of the biggest things in the solar system - the biggest volcano, the deepest chasm, and the biggest canyon.
You might also be interested in: A recent study shows there is a possibility that we came from Mars! No, that doesn't mean a spaceship flew here and dropped us off. Rather, scientists say chunks of rock were thrown off the Red Planet
...more 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 All warm objects radiate in the infrared. The warmer the object, the higher the frequency and intensity of the radiation. Very hot objects give off other types of radiation in addition to infrared. Click
...more 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 Imagine you found a pair of special glasses that not only gave you telescopic vision but gave you the ability to see all forms of radiant energy. The universe in visible light contains all the familiar
...more This is a volcano on the island of Miyake in Japan. It has erupted, sending hot lava and ash into the air, a total of ten times. The time after one eruption until the next occurred was about twenty years
...more The awesome power of a giant black hole was revealed by looking at this galaxy in three different types of light. The picture that you see is of Centaurus A, a very peculiar galaxy. A galaxy is just a
...more