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Space probe according to the detection of object is divided into lunar probe, probe and interplanetary spacecraft, small body such as a space probe to leave the speed of the earth must be large enough to overcome or get rid of the earth's gravity, realize the deep space flight. The probe orbits the heliocentric elliptical orbit (double-cut orbit) that is tangent to the earth's orbit and the planet's orbit, and may meet the target planet; Increase speed to change the orbit, flew to target the planet can shorten the time in order to ensure the detector fly the double track to the planetary orbits and tangent with the target when the target planets also run to it, must be chosen in the earth and the target planet at a particular moment of relative position detector. Detector can fly around the star, the use of planetary gravitational fields accelerate continuous multiple planets orbit the significant characteristic of space probe is, flying in space for long time, the ground cannot real-time remote control, so must have the ability of autonomous navigation; To fly outside the solar system, away from the sun, solar arrays, and nuclear energy systems; It is necessary to adopt special protective structure to withstand very severe space environment. Landing or walking on the surface of the moon or planet requires some special form of structure
This is an article about a malicious program, which is called Cryp1. It is a virus that enters a person's computer, encrypts every one of the files that it could, and requirements a ransom for decryption. Such viruses are classified as ransomware, and they are considered probably the most dangerous varieties of viruses. Their danger is in the belief that they pursue a certain goal so when desire to is achieved - an individual is a a disadvantage: the guy can either accept give the money, or lose his data, which can be very valuable. Cryp1 virus encrypts files with all the RSA algorithm. This algorithm is one of probably the most complex on the planet, and it is used not only by hackers, but additionally through the governments and also the military forces of several countries, such as United States. The code is indeed complex, that it is difficult to crack it with no key. More precisely, it will be possible, but requires enormously powerful computer plus an immense period of time. Of course, a normal user can?t decrypt your data, and, frequently decides to cover a ransom.
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