Asteroids can change its color
About 900 asteroids of various sizes and shapes rotated currently around our sun. Each of these stones is unique in its own way, but, nevertheless, humanity is extremely unlucky when meeting with one of them on the planet. However, despite its fearsome appearance, some of these space objects may surprise even the most sophisticated astronomical plan view. So, in December last year, the scientists were able to detect a particular asteroid, located between Mars and Jupiter. Despite its standard for a stone exterior, have incredible asteroid has its own unusual feature - it is able to change color.
Some of the detected person asteroids have unique properties
Do asteroids may change its color?
Astronomers first discovered a small rocky object that revolves somewhere far away in the asteroid belt, back in 1988, deciding to name their discovery in honor of the famous in scientific circles geologist Donald Gault. Until recently, the space rock was seen as a relatively average size of about 2, 5 miles wide. Currently stone rotates together with thousands of other pieces of rock and dust in the inner region of the asteroid belt, which is located about 214 million miles from the sun.
A good question is: Is it possible to build a city on an asteroid?
Researchers at MIT (Massachusetts Institute of Technology) have confirmed that the asteroid has a rocky surface, though, and has an unusual comet-like tail, which is quite peculiar to the type of asteroids.
Comets tend to come from a much more distant parts of the solar system. When they fly up to the sun, the whole surface of the comet ice instantly turns into a gas, creating a unique tail, due to which could become famous comet. As a team of scientists has discovered that the 6478 Gault is a dry, rocky body, this means that the asteroid will likely generate dust tails of some other active mechanism.
6478 Gault today is a very difficult-to-space object
Observing the asteroid, scientists, and to his surprise, they found that the stone can change color in the near infrared range from red to blue.
The researchers believe that the effect of "cosmic chameleon" is the result of ejecting surface of the asteroid into space dust, which for millions of years, the sun exposure acquired a red hue. The dust is gradually escaping to space, exposes areas less exposed surface, which appears blue in the infrared spectrum.
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Actively "shedding" of dust from the asteroid's surface due to the fact that the asteroid, appears to rotate quickly enough to allow centrifugal force is literally "blow" their entire surface, forming at the same time 2 comet-like tail. For example, researchers estimate that the asteroid should have about a two-hour period of rotation around its axis, so that the above scenario could play out in full force.