30 June — the international day of the asteroid. This new international day, which was proclaimed by the UN General Assembly in December last year. On this day 109 years ago in Siberia fell Tunguska meteorite, which led to the big Bang. The trees were felled over an area of about two thousand square kilometers, which is comparable with the territory of Tokyo. The day of the asteroid dedicated to this event.
This is not the only case when asteroids and other celestial bodies fall to the Ground. It will happen in the future. On the day of the asteroid we need to think about what could happen to us.
The guitarist of Queen Brian may (Brian May), with a doctorate in astrophysics, and his friends, in 2014 began to urge that humanity has thought about this problem. Around the world people began to feel this idea.
According to Professor Makoto between Yoshikawa (Yoshikawa Makoto) of the Japanese aerospace Agency, the diameter of the Tunguska meteorite is 60 meters. Despite this, the energy of the collision is equal to thousands of atomic explosions in Hiroshima.
Discovered about 16 thousand near-Earth objects. Calculate their trajectories showed that the risk of collision with the Earth missing. Found almost all asteroids with a diameter of ten kilometers. These objects led to the extinction of the dinosaurs.
The problem is that discovered only a few percent of asteroids that are comparable to the Tunguska meteorite. So any time there is a danger of collision with such an asteroid.
Movies like “deep impact” and “Armageddon” tell about the danger of collision of the Earth with comets and asteroids. In these films the heavenly bodies destroyed by atomic bombs before their collision with Earth. Humanity survives.
However, according to Professor between Yoshikawa, a similar risk is difficult to avoid, even if you destroy near-Earth object. To control the trajectory of the fragments of the asteroid, so eventually they can fall to the Ground. In his opinion, the best method is to change the trajectory of a celestial body.
The following options are available: to detonate a nuclear bomb near-Earth object collide with a celestial body several research units and so on. Anyway, the need for international cooperation and good preparation. First of all, it can be detect near-Earth object.
Worldwide research is being conducted all over the sky with large telescopes whose diameter is two meters.
Meanwhile, a team of Japanese aerospace Agency under the leadership of chief scientific officer, Toshifumi Yanagisawa (Toshifumi Yanagisawa) have developed a new method for the detection of celestial bodies using a conventional telescope.
© RIA Novosti, Vladimir Astapkovich | go to photobacteria Perseid
Starry sky is removed for a short exposure. Numerous images are superimposed on each other and studied. This allows to detect near-Earth objects that are moving at high speed. It’s more effective than to look for a celestial body with a large telescope.
In January of this year this method was discovered two asteroid with a diameter of 50 and 30 meters. In Japan this happened nine years after the last detection.
In the future, Mr. Yanagisawa counting on help from Amateur astronomers. Japanese Amateur astronomers have discovered many comets, and supernovas. Japan should increase awareness about the problem of the collision of celestial bodies with the Earth.