The charm of science lies not only in revealing the essence of things, but also in the fact that it can bring us some amazing discoveries, such as the following 7 amazing scientific facts, each one is more incredible than the other.

1、正如我們所知，月球是離地球最近的星球，平均距離約為38萬公里，乍一看，這個距離似乎並不遙遠（尤其在宇宙浩瀚的尺度下）。

However, if we put the behemoths of Jupiter, Saturn, Uranus, and Neptune in the solar system, plus Venus, Mars, and Mercury, in a row by diameter, and "squeeze" between the Earth and the Moon one after another, it will still not fill this distance, and even if Pluto is also crammed in, there will still be some space left.

2、恐龍在地球生活了長達1.6億年的時間，這個時間跨度之大，以至於在恐龍時代的絕大部分時間里，地球上就已經存在恐龍的化石了。

In fact, some of the dinosaurs we are familiar with, in fact, did not "meet" each other, a typical example is the stegosaurus and Tyrannosaurus rex, although these two dinosaurs are often in the same frame in film and television works, but they actually lived in different geological periods, known fossil evidence suggests that the Tyrannosaurus rex first appeared about 45,0 years ago, and as early as 00 million years ago, the stegosaurus was extinct.

3. If you can take a time machine back to the time of the dinosaurs, then you are likely to encounter an unexpected embarrassment - you will not appear on prehistoric earth, why? This is closely related to the movement of the sun in the Milky Way.

Since the sun has been "leading" the earth to orbit around the center of the galaxy at a speed of about 5 kilometers per second, it takes about 00 million years to complete a circle, so when the dinosaurs dominated the earth, the location of the earth was actually on the other side of the galaxy, which means that if you choose to travel to the time of the dinosaurs without considering the relative position of the earth in the galaxy, then you are very likely to appear in a cold and dark cosmic space.

40. Among all known animals on the earth, almost half of the species are insects, and among insects, about 0% of the species are beetles, in other words, as far as the known situation is concerned, on average, one out of every five animals on the earth is a beetle.

It has to be said that such striking proportions are so incredible that biologists can't help but joke: if there really is a creator, he is obviously very, very fond of beetles from the point of view of biodiversity.

5. When it comes to insects, we can easily think of caterpillars turning into butterflies, but what you may not know is that in this process, caterpillars have actually undergone a wonderful "metamorphosis and rebirth", when they weave cocoons into a pupal state, their bodies will undergo amazing changes - almost completely dissolved into a mass of cytoplasm, which looks like a complete "destruction".

After that, each drop of cytoplasm rebuilds the butterfly's new body according to the instructions of the genes: wings, antennae, compound eyes, and even a new digestive system. What's even more incredible is that butterflies can still have some memories of the caterpillar period after this radical transformation, because scientists have found through experiments that individuals who learn to avoid a certain odor stimulus during the caterpillar period will still avoid the same smell after becoming a butterfly.

6. How small is an atom? It's hard to feel this problem intuitively with simple numbers, but by contrasting, we can understand how small they are more clearly. For example, if we magnify an atom to the size of a speck of dust, then a speck of dust will be magnified to about the size of the Earth in the same proportions.

For example, if you use a small spoon that you normally eat to scoop a full spoonful of water (about 8 ml), then there are about 0 x 0^0 atoms in that spoonful of water, what is the concept of this number? Let's put it this way, if you scoop water 0 x 0^0 times with this spoon, you can scoop the entire Atlantic Ocean dry as many as 0 times.

7. All life forms on the earth, including us humans, are carbon-based life, that is, there are extremely large numbers of carbon atoms in each of our bodies. But did you know that every carbon atom in your body actually comes from ancient stars that have long since died, formed in the core of the star, formed through nuclear fusion reactions, and when those ancient stars die, they will be supernova explosions or other forms that scatter them into the universe?

In fact, except for light elements such as hydrogen and helium, all other elements in the known universe are basically the products of stellar nuclear fusion, which means that some of the atoms that make up your left hand and some of the atoms that make up your right hand are likely to come from different stars, and they have traveled through hundreds of millions of years of time and space, coming together from different corners of the universe to make you unique today.

In fact, this is also considered the most romantic scientific fact in the universe – we are all stardust.