What was the last photo taken by the farthest artifact? Why should humans think deeply?

1 On September 5th, 977, with a huge roar, Titan-3 E Centauri rocket pushed Voyager 1 out of the earth, and Voyager 2 took off into outer space 16 days before Voyager1. Because Voyager 1 got a faster initial speed than Voyager 2, in the subsequent mission, Voyager 65438+. Now, these two detectors have been running for 42 years, and the flying speed has reached 17km/s and 15km/s respectively. At present, Voyager 1 has flown to a position about 22.2 billion kilometers away from the Earth.

The range of the solar wind layer top is about 654.38+08 billion kilometers. When the detector reaches this position, it detects that the cosmic high-energy rays are increasing, while the solar wind particles are stagnant and decreasing. Therefore, NASA believes that the probe has flown out of the solar circle. At present, we think that the scope of the solar system is bounded by the Oort cloud in astronomical theory. If Voyager 1 can fly a distance of about 3.599 astronomical units every year, it will take at least 300 years to get close to or enter the Oort Cloud.

1 979 65438+1October traveler1Start observing Jupiter. In March this year, it entered an orbit 349,000 kilometers away from Jupiter, and took a large number of photos of Jupiter's atmosphere, magnetic field, halo and its four Galileo satellites with a high-resolution planetary camera. The most amazing discovery is the volcanic activity on Io. This phenomenon has never been observed before. In April, Jupiter's exploration was completed, and Jupiter's gravity was used to gain higher speed and head for Saturn. 1 980165438+1October Traveler1Close to Saturn, and began to take a lot of photos of Saturn's system in the orbit from Saturn 124000 km. The biggest discovery is the dense atmosphere on Titan.

Due to the end of the planetary exploration mission, when Science was about to turn off the planetary camera on Voyager 1, astronomer Carl? Sagan suggested that the navigator 1 take a family photo of the solar system. 1 Feb. 990 14 Voyager1Camera started shooting six planets in the solar system. At this time, the detector is about 6 billion kilometers away from the earth. The planet and sun photographed by Voyager 1 have been processed, and the background and orbit have been added to form the above picture. Different from the photos of the solar system we have seen in the past, it is the solar system taken by human beings, not the computer synthesis. This is the last photo sent back by Voyager 1. In the family photos of the solar system, we can see that the giant sun in our hearts is only a faint bright spot, and the whole solar system looks so thin and small.

Before that, the Apollo program let us see the earth on other planets for the first time. This photo is called "Out of the Ground". This moment is considered as valuable as landing on the moon. Because for thousands of years, human beings have been looking up at other planets from the earth, and now we are standing on other planets to see the earth. The light blue light spot provides a farther and higher angle for human beings to observe the earth. This photo is considered to be one of the most precious photos in the history of human space. It comes from Voyager 1 and is currently 22.2 billion kilometers away from the Earth.