Why can’t we see Proxima Centauri, the “star closest to the solar system” with naked eyes, but we can easily see Cowherd and Vega?
Proxima Centauri is located in the southern constellation of the sky, only 4.22 light-years from the sun, but…
Weird trivia for children: They Think They Can Fly Can stars outside the Milky Way be seen by the naked eye?
Weird trivia for children: They Think They Can Fly The naked eye can indeed see celestial bodies outside…
Human probes have not left the solar system. How is the structure of the Milky Way drawn?
The solar system is on the disk of the Milky Way, and we can only see the Milky…
Does the center of the galaxy glow?
If it refers to the nuclear ball, the central area of the Milky Way, it is luminous and…
Aviation trivia: Why do astronauts have to sit in chairs after returning to the cabin?
To say which profession in our various industries has the highest risk, the highest altitude, and the fastest…
Space trivia: America’s first space female SALLY RIDE, formerly a professional tennis player
When Ride was growing up near Los Angeles, she played more than a little tennis, and she was…
Space trivia: America’s first woman to enter space?
When Sally Ride made her first space flight in 1983, she was both the first American woman and…
How long is the day of Venus?
As the second closest planet to the sun in the solar system, it is also the closest planet…
Space trivia: What are the creatures that enter space first?
The first creature that really entered space was not a human being, but a stray dog on the…
Apollo trivia: Are the instruments left on the moon still working?
As technology has advanced, ground station sensitivity has been repeatedly upgraded faster than the reflectors have deteriorated. As…
Fecal Trivia: Human Feces Also on the Moon
People always seem to litter, but you know what? There are also feces discarded by humans on the…
Rocket trivia: Why do you need multiple thrusters to drive the rocket?
We know that to achieve space navigation, the rocket’s speed must theoretically reach at least 7.91 km /…
Earth Trivia: Is It Really Getting Heavy Every Day?
According to scientific calculations, the weight of cosmic dust and other particles falling on the earth ranges from…
Planet Trivia: What kind of rain is Venus?
The rain above and below Venus is not liquid, but metal pieces. Why is this so? See below…
Neptune trivia: Is there a diamond ocean on Neptune?
First of all, the diamond ocean is not only found on Neptune, but also on Uranus. Under the…
Satellite trivia:Why hasn’t voyager 1 hit another planet in 42 years?
Why hasn’t voyager 1 hit another planet in 42 years? Although there are plenty of asteroids in the…
Space Trivia: Drinking water accidentally in space can drown?
Tears are fluids that flow from your eyes when you are sad or overly excited. But do you…
Black hole trivia:Where Do Black Holes Lead?
So there you are, about to leap into a black hole. What could possibly await should — against all…
Space trivia:What happens when you shoot in space?
Although it sounds cool to shoot a gun in space, this is not the case, because there is…
Moon trivia:Why do the moon have different terrains on two sides?
The moon has two sides: the side facing the earth is relatively flat; the back of the moon…
Astronaut trivia:Male astronaut urination model size
NASA had to rename the size of the urination device for male astronauts. The former model of the…
Sun Trivia: Is the water on the earth still in 1 billion years?
After entering a research institute for multiple data model calculations, it is known that after about 1.1 billion…
Space trivia:Why didn’t the birds flow into space?
So far, human exploration of outer space has never stopped, and many animals and plants have been sent…
Cosmic trivia:What was the universe before the big bang?
It is hard to imagine what the universe looked like 13.7 billion years ago. At that time, the…