Uninvited guests in the sky

Space scientists will increase research efforts to cope with the risk that may arise when two relatively large asteroids will have a "close-to-fly" route to Earth, in which the risk is first eyes are asteroid 99942 Apophis.

>>>'Blowing away' asteroids threatening the earth with a nuclear bomb

Named after the name of the god representing the evil and dark world in Greek mythology, the asteroid 99942 Apophis, about 240 meters in size - is large enough to create destructive power far beyond 25,000 raw bombs. He throws down on Hiroshima if it hits Earth.

According to initial calculations, the occurrence rate of an asteroid collision with Earth in 2029 is 2.7% - the highest rate ever recorded for an asteroid.

Comets "roam" outside the universe.

According to NASA's Jet Propulsion (JPL) testing center, if the Earth overcomes this "limit" , there is still a risk of another collision occurring on April 13, 2036, at a rate. is 1 / 250,000.

However, scientists are taking into account an effect called Yarkovsky - a phenomenon where a part of an asteroid melts as it flies near the Sun and cools when it flies away - affecting properties. Math science in the future or not.

Lance Benner, a researcher at JPL said: 'We hope that the use of new measurements of the asteroid's distance and observed speed, and we can reduce it. Minor inaccuracies in its orbit and create more time for us to calculate future movements'.

Mark Bailey, director of Armagh Observatory in Northern Ireland, said: 'This will be the closest asteroid to Earth ever predicted. Because it will approach so close, even amateur space researchers can observe it when it obscures the light of the stars behind. And maybe they can see with their eyes. '

In 2004, Apophis used to make the researchers suffocate the first time it appeared.