On Mars, found the equatorial sea ice

24.02.2005

24.02.2005


—>


The spacecraft Mars Express passed stereo images that scientists have interpreted as a real pack ice in the equatorial region of the planet.

The unit of the European Space Agency's (European Space Agency) held a new survey of Elysium, located not so far from the equator. There had already found relief details that established the ancient river activities, but had never seen anything like the sea.

However, the new high-resolution stereoscopic camera showed a huge plot (size 800 x 600 km), which in appearance is easily mistaken for twins with large flat Arctic ice floes, the debris piled ice hummocks.

Scientists have long believed that the detection of sub-surface deposits of water ice, including in the equatorial regions of the planet — very likely, but that it was actually found on the surface …

Why does not the ice disappeared from the Sun and at very low atmospheric pressure? Experts believe that the observed ice closed crust of dust and dirt thickness of a few centimeters.

Once upon a time, the scientists argue, this site has been filled with liquid water, and then he froze and gradually covered with dust, so that has survived to the present day.

Water that once formed a sea, it seems, came from beneath the surface of Mars, a number of faults, known as the Cerberus Fossae.

Interestingly, soon to deploy the European satellite instrument Marsis, the commissioning of which has been repeatedly postponed.

This is a special dish that can find water for many kilometers deep. The irony is that a thin (relatively) layer of ice directly on the surface of Mars, it is most likely not feel a thing.

Because the opening of "the photographs" is confirmed by Marsis only if found Sea (ice) has a greater depth (and so far suggest that it is equal to an average of 45 meters). In general, there may be superfast and can not cope.

One way or another, but this section of the world — one of the most attractive candidates for future landing probes on Mars and, of course, to create a habitable base.

21.02.2005

SQL - 17 | 0,461 сек. | 7.41 МБ