"According to foreign media coverage, although the possibility of earth of minor planet dash against is extremely small, but false with time, such disaster happens likely still. And expert warning says, the mankind has not bumped ready-made for minor planet, once minor planet comes to the earth, we can helplessly wait for death.

According to foreign media coverage, although the possibility of earth of minor planet dash against is extremely small, but false with time, such disaster happens likely still. And expert warning says, the mankind has not bumped ready-made for minor planet, once minor planet comes to the earth, we can helplessly wait for death.

The Joseph that NASA is as high as center of heart space flight · exert this the doctor was in the United States recently earthly physics expresses on allied annual meeting, we ought to place a hope at automatic intercept rocket, get ready ahead of schedule, in order to have untimely needs. Exert this point out: The question with the biggest “ is, what we can do at present is very finite. ”

Although dangerous asteroid and comet are unlikely to hit the earth, but exert this doctoral warning says, this one menace exists from beginning to end: “ every other 50 million to 60000000, can produce similar dinosaur to eradicate in that way disastrous event. We perhaps are in twice by clip by chance among incident, but this kind of thing can produce randomly. ”

Before this, comet ever brushed a shoulder with the earth for many times and pass. 1996, dash against of nearly of a comet the earth, turn finally nevertheless the head flies to spark. 2014, another comet “ was sticking spark to fly almost past ” . In addition, when waiting for us to discover comet, often had had not enough time to fire automatic intercept rocket. Exert this the doctor points out: What “ is arranged and launch a reliable spacecraft to often want last a period of time 5 years is long. And we are in after discovering comet, have the preparative time of 22 months only. ”

Exert this doctoral proposal NASA makes rocket of an automatic intercept and a spacecraft that are used at observation, so OK preparation of 5 years time shortens half. And if we can be developed,go out to need one year only missile rocket, still can the possibility ” of the earth of local sneak attack that “ reduces minor planet to wait for not easy observation from the sun.

Before this, other expert also has put forward a warning to say, the earth has not made the preparation that answers minor planet to bump good. This year in September, american science and director of technical policy office writing brush · Huo Er pauses about (John Holdren) the warning says, minor planet bumps “ or will make the earth is played havoc with ” . This expert mentioned modern the disastrous event that stuns the world twice: The aerolite of Che Erya Bin Sike 2013 bumps incident, and an incident of Gu Si big burst 1908.