Is there life on Mars? Scientist: These “moving” things may be clues
In order to explore Mars and find the existence of life on Mars, humans have been sending various probes to Mars since the last century. Almost as soon as human beings have the ability to break free from the earth’s gravity and fly into space, human beings begin to explore Mars .
In 1960, the former Soviet Union sent two Mars probes to Mars successively , with a difference of only 4 days. Although they both ended in failure , and they did not even reach the earth’s orbit, this was the beginning of human exploration of Mars. Two years later, after another failure, the former Soviet Union launched Mars 1. Although this time it successfully entered the orbit to Mars , four months later, the signal was interrupted . , still fails.
In 1964, not far behind, the United States successfully launched the Mariner 4 Mars probe , and became the first probe to reach Mars and send back data . It flew over Mars at a distance of about 9,800 kilometers from the surface of Mars and sent back data. 21 photos.
These photos can clearly show the surface. The density of the atmosphere on Mars is very thin , not as thick as the earth, and the Mars in the photos breaks people’s previous illusions about it. Its surface is dry and dusty, and there are no oceans and rivers . Since then, various countries have made attempts. The United States, the Soviet Union, China, Europe, Japan and other countries have continuously launched dozens of Mars probes.