Can you imagine how you get the gorgeous cosmic images you see?How are those distant galaxies and nebulae photographed by humans?When we look up at the starry sky on a clear night,we will see the stars all over the sky.These dense stars seem to be the universe we can see with the naked eye.However,this is not the case in fact.This is a simulation diagram of the Milky way.We live in this very ordinary galaxy

How many planetary probes have been launched since mankind stepped out of the earth to explore space?At present,there is no complete data,and space-time communication can only report an incomplete statistics to you based on some data collected

The solar system is a star system centered on the sun. There are eight planets orbiting the sun, namely mercury, Venus, earth, Mars, Jupiter, Saturn, Uranus and Neptune. In addition, there are many satellites, dwarf planets, asteroids and other celestial bodies in the solar system. There are two regions in the solar system with a large number of celestial bodies, one of which is the asteroid belt between the orbits of Mars and Jupiter. At present, there are more than 120000 numbered asteroids in this region

On October 4,1957,satellite 1 was launched from the Baikonur space launch site of the Soviet Union and entered the orbit around the earth,becoming the first man-made object to enter space. 1961:dongfang-1-the first time humans entered space

The earth is the home on which human beings live.In ancient times,human beings believed that the earth was the center of the universe.Many tribes fought to the death for land and resources,even in modern times

The earth is the only planet except Pluto that can see a total solar eclipse.It is a coincidence that we can see the total solar eclipse:the moon,which is 400 times smaller than the sun

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