humans started exploring Mars as early as 60 years ago, but some of the first probes basically ended in failure, until the Mariner 4 probe was launched on November 28, 1964, on July 14, 1965. The sun successfully flew over Mars at close range and took 21 photos of Mars from a height of about 10,000 kilometers from the surface of Mars. This is the first probe for us humans to successfully reach Mars, and it is also the first time we have taken photos from another planet besides the Earth. Since we humans have never seen the surface of Mars at close range before, some people thought that Mars might also have life, but the photos returned by the Mariner 4 probe show us the deadly environment on the surface of Mars, full of craters. , So many people are disappointed.
With the development of science and technology, the success rate of Mars rover launched later is getting higher and higher. Some rover even drove on the surface of Mars. For example, the Curiosity rover is currently operating on the surface of Mars, and data is sent back from time to time. photo. NASA will also share some photos of Mars. For example, NASA now shares some photos of Curiosity on the surface of Mars, including selfies. The photos released this time are still relatively clear. Through these photos, let us see the scene of Mars.
Curiosity's selfie
At that time, Curiosity drilled 3 small holes on the surface of Mars, and then "stand" next to the 3 small holes to take a selfie. Of course, we can't see these small holes clearly in this selfie because they are very small.
From another close-up photo, we can see that there are 3 small holes in the left area of the Curiosity rover. These small holes are named Groken, Mary Anning and Mary Anning 3, and the scientists are still here. The names of these holes are marked on the photo. The reason for drilling in this area is that scientists believe that we may find some details of the ancient environment of Mars in this area.
has close-up photos and is very clear, so we can see the real scene of the surface of Mars. There is no suspense, these clear photos still show us a desolate Martian face, which is not much different from previous Martian photos. It looks a bit like some Gobi deserts and desert areas of our planet. After all, the environment of Mars will not change because of the clarity of our photos.
Since the Curiosity rover has been on Mars for 8 years, although the Curiosity in this selfie looks relatively good, its situation is not particularly optimistic, because its main wheels have already appeared. Cracked. After all, driving on the surface of Mars for a long time, damage is inevitable.
Could Mars be our second home?
The Curiosity rover is not the only Mars rover. In addition to the previous Mars rover, there are 3 new rover on the way to Mars this year, such as ours Tianwen No.1, Hope of the UAE, Perseverance of the United States. The reason why these probes are all launched this year is because the revolution between Mars and the Earth causes a Mars probe launch window about every 26 months, and this summer just ushered in a rare launch window. So the detectors are all launched into the air.
It seems that more and more space agencies are participating in the exploration of Mars. The reason why Mars has become the focus of our attention is because Mars has many similarities with our earth and has the potential to become our second home for humans. According to some assumptions, perhaps in the near future, we humans will achieve manned landing on Mars, and then build a Martian city.
I believe everyone also knows that SpaceX is building a interstellar spacecraft . This interstellar spacecraft is relatively large and can carry up to 100 passengers to the moon and Mars. According to the assumption, they hope to build 100 such interstellar spacecraft every year, and strive to send 1 million people to Mars by 2050. If so many people can reach Mars and settle down smoothly, it means that a Mars city of a certain size will appear on Mars in the near future.City.
