What happened to the discovery of 'human leg bones' on Mars? A fossil of life? scientists explain
There is a Five-hundred-meter Aperture Spherical Telescope (FAST) in Zhengqiannan Buyi and Miao Autonomous Prefecture, Guizhou, China. In the eyes of the famous British physicist Steve Hawking, he believes that our "Chinese Sky Eye" is too large to be caught by the discovery of extraterrestrial life and "visit" the earth.
Therefore, he repeatedly warned: Do not respond to any signals from outer space, because the intention of the other party is unclear, and do not take the initiative to contact them. If the location of human beings is exposed like this, and two civilizations of different levels meet, it will be An unimaginable catastrophe.
However, this has not diminished our enthusiasm for the exploration of extraterrestrial life, but has become more enthusiastic about this matter in recent years. For alien life, the existence of signs of life on Mars has always been a hotly debated issue. Scientists have launched dozens of space probes to Mars. From the images returned by these probes, we have found some secret.
On August 14, 2014, the "Curiosity" Mars rover returned an image. In this image, a strangely shaped stone appeared. Some netizens said that it looked like a human leg bone. As soon as the news came out, it caused an uproar. Does life really exist on Mars?
A spokesman for NASA came out to refute the rumor and explained that the reason why the stone looked like a human thigh bone was because it was caused by Martian weathering or water erosion, and was formed by natural factors. And, even if life ever existed on the surface of Mars, it would have been simple, tiny creatures like microbes.
We all know that although Mars also has an atmosphere, the main component of the Martian atmosphere is carbon dioxide, followed by nitrogen, argon, and a small amount of oxygen and water vapor. There is not enough oxygen to support the formation of complex life, so this is not likely to be a biological fossil.
The sharp-eyed friends must have discovered the word "water erosion", yes, on July 25, 2018, scientists discovered a liquid water lake with a diameter of about 20 kilometers at 1.5 kilometers under the Mars South Pole Ice Sheet . But at present it is only the result of radar analysis, and it will definitely need to be verified after landing on Mars in the later stage, but the 1.5-kilometer-thick ice sheet cannot be digged, which is also very difficult.
Closer to home, although NASA came out to explain, there are still people who firmly believe that this is the conclusive evidence of the existence of alien life, maybe it is the obsession of "don't hit the southern wall and don't look back". In this regard, someone else put forward a special idea. He wanted to borrow the "Curiosity" rover from NASA to search for life on Mars, and also said that if NASA is willing to lend him the "Curiosity" rover, he promises Signs of life can be found within months.