Why did a nearly black photo taken by Voyager 1 shock countless people?

Why did a nearly black photo taken by Voyager 1 shock countless people? Because in this photo, we can clearly see that the earth is only as small as a dust in the universe!

When we look up at the night sky, Sirius is the brightest star in the winter sky, but no matter how dazzling the stars in the sky are, they are not as bright as the sun.

Does the sun deserve the name of the solar system? Boss? It occupies more than 99% of the mass of the solar system. The mass of the sun is 200 billion tons, 330,000 times that of the earth, and the volume of a sun is 6.5438+0.3 million times that of the earth.

The existence of the sun is also essential for human beings. Without the sun, the earth would be an icy planet, and life could not exist on the earth with the temperature as low as-100 degrees.

We often hear such a sentence? Vast universe? So, how big is the universe? Take the earth as an example. As a member of the solar system, the earth has a diameter of 12756 km and an area of 5 1 100 million square kilometers.

The equatorial circumference of the earth alone exceeds 40 thousand kilometers. Without the help of transportation, it is almost impossible for human beings to travel around the world. Even with transportation, it takes a lot of time for human beings to travel around the world.

In the vast universe, the position of the sun is insignificant. According to research, the Milky Way has10 billion to 400 billion stars, 90% of which are dwarfs, and the sun is among them. This also proves that besides the sun, there are thousands of planets similar to the sun in Qian Qian.

As we all know, the earth is only a member of the vast universe, and the existence of human beings is very small. For the whole universe, the earth may not be dust. Why do you say that? In fact, hundreds of millions of kilometers away, the Voyager 1 spacecraft has given the answer.

1977, NASA launched a plane named? Voyager one? Solar system space exploration spacecraft, the original purpose of this probe is only to explore Jupiter and Saturn, two gaseous planets.

Voyager 1 is an unmanned outer solar system space probe developed by NASA, weighing 8 15 kg. It was launched on September 5th, 1977, and was the first probe to provide detailed photos of Jupiter, Saturn and their moons. Voyager 1 is the farthest man-made satellite from the earth, becoming the first spacecraft to cross the solar circle and enter the interstellar medium.

Voyager 1 powered by three radioisotope thermoelectric generators. These generators have greatly exceeded the original design life, and it is generally believed that they will still provide enough power for spacecraft to continue to contact the earth before about 2020.

1980, after Voyager 1 successfully completed its exploration mission, scientists were surprised to find that Voyager 1 could continue to fly in space, and the aircraft was in excellent condition. Therefore, scientists decided to change the exploration mission of Voyager 1 and turn it into an exploration outside the solar system.

Voyager 1 has been able to sail in space for 42 years. In addition to its excellent endurance, Voyager 1 also touched the powerful Jupiter and Saturn. Slingshot gravity? This will not only help Voyager 1 to save energy, but also ensure that Voyager 1 will not deviate from its orbit.

Now, this unmanned probe has flown to a place 2 1 1 100 million kilometers away from the earth. It is currently in interstellar space, which means that Voyager 1 will fly out of the solar system soon.

In addition to exploring the solar system, Voyager 1 also undertakes the task of finding extraterrestrial life. Before the launch of Voyager 1, scientists installed a CD containing human civilization and history on this spaceship, and people expected Voyager 1 to meet extraterrestrial life.

When Voyager 1 flew 65 kilometers away from the Earth, Voyager 1 took a picture of the Earth. At first glance, this photo seems to be completely black and you can't see anything. However, this photo shocked scientists and countless people all over the world.

This is because in the corner of the photo, people vaguely saw a light blue light spot, and this light spot smaller than dust turned out to be our earth. You can imagine how small the earth is in the universe.

This probe has flown to a place 2 1100000 kilometers away from the solar system, and Voyager1is 0/000 kilometers away from the Earth. At this time, the earth has become a point the size of dust. Although the sun is the brightest star, it no longer looks special.