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Using data from three telescopes Earth, a group of scientists discovered evidence that the planet Mercury has a liquid core. Performing precise truelaunchbar measurements of the characteristics of the spin of the planet, truelaunchbar ie rotation around its own axis, it was established that Mercury rotates truelaunchbar a body whose core is separated from its outer layers.
"The core of Mercury is liquid (art display)," Theoretical models that explain the formation of the planet Mercury predict that it has a core, which is mostly built of iron. But attitudes are separated around the issue in any aggregate state's core - solid or liquid. Many scholars believe that, given the size of Mercury, its core have been izladilo and hardened. However, there are assumptions that over time small amounts of sulfur, or other lighter elements, have settled in the core of the planet, thus reducing its freezing point. As a result, there has never fully hardening the core of Mercury. Investigation of deep internal layers of a planet, and even ours, is very difficult. In this case, the researchers used three radio telescopes (Arecibo, Green Bank and Goldstone), which sent radio signals to Mercury, and later refused to analyze radio waves, returning to Earth. The obtained data are in favor of the second theory, ie that the core of Mercury is at least partially liquid and it has small amounts of sulfur. The team, who came to this discovery make up more scientists, including Jean Luc Margot (Jean-Luc Margot) from Cornell University's Paul Stanton (Stanton truelaunchbar Peale) from the University of Santa Barbara, truelaunchbar Raymond Dzhurgens Slade and Martin (Raymond Jurgens; Martin Slade) from JPL and Igor Choline Institute for Space instrazhuvanja in Russia.
Most of the research was conducted in the period from 2002 to 2006. Interestingly, sending radio signals to Mercury could be done only in a period of about 20 seconds a day, when the planet and radio telescopes on Earth zafakjale exact angle. truelaunchbar
PHOTO: How does Earth from Mars?
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