From the Saint, it already makes people cringe. The space rock was black, dark, similar to a giant skull with hollow eyes and a nose that is perforated.
Asteroid 2015 TB145, official name, never approaching the Earth three years ago, in the midst of Halloween celebrations 2015.
640 meters wide space rock is located at the point of closest approach to the Earth on October 1, 2015, with a distance of 300 thousand miles or 480 thousand kilometers from the planet of humans.
It is still more distant from the distance of the moon to the Earth which reached 384,600 239 thousand miles or kilometers.
The observation is done at the time, using a variety of instruments reveals similar 2015 TB145, form a giant skull--at least from a number of viewpoints.
Observational astronomers also reveals that the asteroid takes 2.94 hours to complete a period of its rotation. That way, the asteroid was only reflecting light from the Sun is around 5-6 per cent only.
"It means it's very dark space stones, just a bit more reflective than charcoal," said Pablo Santos-Sanz, an astrophysicist at the Institute of Astrophysics of Andalusia, Spain, as quoted from the website of LiveScience, Science Friday (2/1/2018).
Pablo Santos-Sanz is one of the authors of the study of the characteristics of the 2015 TB145, published in the journal Astronomy Astrophysics & in February 2017.
The asteroid could be derived from the Comet is already off and water loss as well as materials from other volatile, having spent many laps around the Sun.
Each round takes 3.04 years (Earth time). That means, the Asteroid 2015 TB145 resembling skulls will be closer to the planet humans around the middle of November 2018.
However, don't rush to worry. Scientists predict, the space rock approach on 2018 will not sedramatis in 2015.
Because, the asteroid will pass at a distance of about 105 times the distance of Earth to the moon. Therefore, Meskin Pablo Santos-Sanz and other researchers still awaits his appearance.
"We can get the new data which can help increase our knowledge of this asteroid and other similar mass approaches the Earth," said Santos-Sanz.
Killer Asteroid Threat
As the institution responsible for the space program. NASA is already thinking of a plan stop the asteroid that crashed into the Earth.
Lacing the asteroid is one of the attacks from the outside of the Earth which became human challenges.
A giant space rock believed to hit the Earth, wiping out the dinosaurs participate.
In the meantime, the space rock fell on June 30, 1908 in Tunguska, Siberia. It was the largest in history, causing devastation in the area of equal size of the metropolitan city, 2,000 square kilometers.
Fortunately, the space rock that slammed into a remote area it does not cause any casualties. However, imagine if it happens in the middle of a big city.
It is estimated there are millions of space rocks that could endanger Earth. However, the new 10 thousand or just 1 percent that is known of its existence.
Earlier, the United States Space Agency (NASA) and the emergency management agency or the Federal Emergency Management Agency (FEMA), along with a number of other agencies carry out training and simulation of disaster--what will be done if the correct space rock all 100 meters heading into the Earth.
According to the Manager of the Center for study of near-Earth objects or the Center for Near-Earth Objects Studies of NASA's Jet Propulsion Laboratory, Pasadena, Calif., Paul Chodas, the chances of an asteroid that could cause the worst damage that would point to the Earth, the relatively small . At least until the next century.
NASA relies on a number of telescopes to undertake to monitor, such as the Catalina Sky Survey at the University of Arizona--to track asteroids and comets that could potentially harm.
The objects--which in fact is the rest of the formation of the planet--can pass close to the Earth.
Center for Near-Earth Objects Studies NASA record 659 asteroids that have a possibility of rammed earth. "But there's nothing significant at least pose a threat within the next century, because the chances are not too large or the size of the stone space that is too small," said Chodas.
"Nevertheless, we must continue to seek out and observe the asteroid-asteroid, just in case if any of the stone space that leads to Earth."
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