Science
Science
Scientists dare not bring Martian soil back to Earth, why? The consequences can be very serious
In the middle of the last century, the United States and the Soviet Union competed for hegemony on a global scale, whether it was military or economic, and even space. At that time, both the United States and the Soviet Union wanted their own astronauts to conduct the first space flight in human history. In the end, the Soviet Union took the lead. In 1961, the Soviet astronaut Gagarin became the first human in history to enter space, unveiling the history of manned spaceflight.
By nally norris3 years ago in FYI
The "high fever" in the Arctic continues, the remains of prehistoric creatures appear one after another, and the bacteria under the ice may wake up
The discovery of dinosaur fossils is not uncommon for people on earth. However, if people find the remains of prehistoric creatures in glaciers and permafrost due to the impact of climate change on the ecological environment, will people be surprised? , and expressed concern.
By nally norris3 years ago in FYI
Is the speed of light really the fastest speed in the universe? In fact it's "slow as a turtle"
When the term "speed of light" is mentioned, I don't know what everyone will think of in the first place. In a short period of time, when the whole world is illuminated, I believe many people will sigh at the amazing speed of light transmission. And scientists are even more hopeful, and want to make the speed of human beings reach the speed of light successfully one day in the future.
By nally norris3 years ago in FYI
Space X's moon landing program was called to a halt. The reason is this, the old American spaceflight is too weird
In the field of spaceflight, our country has participated very little in the last century. Basically, the United States and the Soviet Union are doing things. Our most famous one may only be Dongfanghong 1, but the times are advancing. Today in the 21st century, we It has become one of the aerospace powers, not only launching the first probe to land on the back of the moon, but also about to start scientific research work on Mars.
By dardani lennon3 years ago in FYI
In this blue area, seemingly empty, contains 5500 galaxies
The stars and the sea are deep and charming. It is not easy to really understand it. The distance between them and us humans is too far, and it is easy to cause our visual errors. If you don’t believe it, you can look at this photo and pay attention. Look closely, what do you see? You must have thought that you saw the stars in the sky, and even the not-so-big moon. In addition to this, there is only endless darkness and void. However, next, when we slowly enlarge this photo, you will witness the birth of a miracle. Now we have enlarged this image by a certain number of times, what you see now The moon has become extremely clear, and the lunar sea and radiation patterns are clearly visible.
By dardani lennon3 years ago in FYI
Natural creatures lose 50 species every day, but do you know how many new species are produced?
You must have heard a lot of news about natural creatures in the news, radio and other media. Thousands of species have gone extinct worldwide in recent centuries. In the past 400 years, the rate of species extinction has increased rapidly. A species goes extinct roughly every 4 years, between 13 and 135 times the normal fossil record.
By dardani lennon3 years ago in FYI
Magnetar VS pulsar who is more powerful? What is the difference between a pulsar and a magnetar?
There are all kinds of celestial bodies in the universe, and magnetars and pulsars are very popular. We have always wondered which of them is more powerful. Let's talk about it today. Both magnetars and pulsars are a type of neutron star, and both are stars with a mass between three and eight times that of the sun. It was formed after the supernova explosion occurred due to the rapid collapse of the interior due to the exhaustion of fuel in the later years of its demise. However, there is a huge difference between the two celestial bodies.
By dardani lennon3 years ago in FYI
Musk is going to launch 42,000 Starlink satellites, will it threaten the security of Tiangong Space Station?
On April 29, 2021, the "Tianhe" core module was successfully launched into orbit, officially starting the construction process of the Tiangong space station. On the same day, Musk’s SpaceX launched 60 satellites, and the number of Starlink satellites in low-Earth orbit has increased to 1,438; on May 4, Starlink plans to launch 26 batches of satellites, raising the total number of satellites in orbit to 1,498. particles.
By dardani lennon3 years ago in FYI
Amazing amount! 50 million tons of extraterrestrial dust fall on the earth every year, the earth is not safe!
In Antarctica, scientists have made an interesting discovery: Every year, about 50 million tons of cosmic dust break through the protection of the earth's atmosphere and eventually land on the earth's surface.
By dardani lennon3 years ago in FYI
Panama monkeys have entered the Stone Age, will they threaten humans in the future?
Panama monkey, a species of monkey, is also called Panama monkey because the population is distributed in Panama. In fact, it is not uncommon for Panama monkeys to enter the Stone Age.
By dardani lennon3 years ago in FYI
A group of mysterious "yellow balls" appeared in the Milky Way, scattered in many places, scientists: they are very strange
Since 2010, American scientists have been searching for mysterious "yellow balls" in the universe. They were first discovered when they were sorting out the "Spitzer" space telescope. In the pictures of the Milky Way it took, scientists found a lot of Strange "yellow balls", what are they?
By dardani lennon3 years ago in FYI
Why are meteorites so expensive? Yang Kexin, a girl from Guizhou, picked up 400 kilograms of meteorites in Xinjiang for 5 years
With the marketing slogan "Diamonds are forever, a diamond is forever", diamonds are hyped into expensive luxury goods. But in nature, the most expensive stones are not diamonds, but meteorites. Nowadays, the price of meteorites has been fired to tens of thousands of pieces per carat, and meteorites are different from diamonds. Meteorites are usually a large piece, or even a ton of meteorites. This shows how expensive the price of meteorites is.
By dardani lennon3 years ago in FYI
