Possibility: Danger appears

Plot: Crops (mainly corn) suffered from Fusarium wilt, food was in short supply, and sandstorms swept through, so human beings had to seek living space in outer space.

First of all, Interstellar's background cost scientific consultant Kip Thorne (an American physicist, one of the world's leaders in the field of astrophysics under the general theory of relativity). As a physicist, in order to ensure that the hypothesis of "vegetation withers a lot" has a scientific basis, he prepared delicious food and invited a large number of relevant professors from California Institute of Technology, including David Baltimore, winner of the 1975 Nobel Prize in Medicine and Physiology, to organize a discussion for more than two hours.

Fusarium wilt is also called epidemic disease. Plant diseases caused by fungi or bacteria have a sudden onset, and the symptoms include severe spotting, withering or the death of leaves, flowers, fruits, stems or whole plants. The "banana AIDS" that was madly transmitted on the Internet before was actually banana Fusarium wilt. At present, watermelon Fusarium wilt and cucumber Fusarium wilt have been discovered. In reality, the United States is an epidemic area of corn bacterial wilt. At present, some broad-spectrum antibacterial pesticides are mostly used to prevent Fusarium wilt.

experts say that although there is no blight on the earth that can destroy the whole plant kingdom, it is still possible if there is a pathogen that specifically bullies chloroplasts. In a word, this blight caused a large amount of grain yield reduction and surface desertification, which also brought sandstorms everywhere on the earth.

Cryopreservation

Possibility: There may be a

scenario in the future: astronauts can enter the dormant waterbed and set their own wake-up time.

Not only Interstellar, but also in works such as Alien and Deep Space Amnesia, human beings use dormancy to kill time.

technically, low-temperature dormancy of human beings means freezing human beings to MINUS 196 degrees Celsius in a very short time, stopping the activities of cells and prolonging the life cycle of human beings indefinitely. However, at present, human beings can't do this, especially in the range of to MINUS 6 degrees Celsius, the ice crystals produced are fatal to human cells, and there will be a physical process of "thermal contraction and cold expansion" in the freezing process of water.

but it may come true in the near future. Domestic hospitals have been able to put the brain at a low temperature of MINUS 33 degrees Celsius and let patients hibernate before performing brain surgery. Recently, Japanese scientists found that a leech can still survive in liquid nitrogen at MINUS 196 degrees Celsius. This discovery may be helpful to find a new method for cryopreservation of human organs.

Time dilation

Possibility: Verified

Plot: In the movie, Cooper and female scientist Brand landed on a planet orbiting a black hole, and one hour on the planet is equivalent to seven years on earth.

Due to the expansion of time, the crew of "Tenacity" in Interstellar aged more slowly than people on earth. This phenomenon accords with Einstein's theory. According to Einstein's theory, when people move near the speed of light, time will slow down. On earth, scientists have proved this theory through experiments.

Martin barstow, president of the Royal Astronomical Society, said: "This phenomenon has been verified. According to Einstein's special theory of relativity, objects moving at different speeds experience different times. For example, the astronauts who landed on the moon moved faster than anyone on earth, and their aging rate was slightly slower than anyone on earth, but it was not obvious. However, if your speed is close to the speed of light-it is difficult to achieve-you can notice this effect. We can also see this phenomenon when objects move rapidly in the universe. "

Chen Xuelei, a researcher at the National Astronomical Observatory of the Chinese Academy of Sciences and the chief scientist of the Dark Matter and Dark Energy Group of the Universe, believes that "it is an extreme situation that one hour reaches seven years in the movie. Although there is relevant theoretical basis, it is not known whether such a planet can really be found."

accretion disk

Possibility: There is indeed a

plot: One of Interstellar's major selling points is that he made the best black hole simulation ever under the guidance of physicist Thorne. Except for the black part, the ring-shaped structure as dazzling as a crown must be the most concerned by everyone. This is a bright structure-accretion disk produced by the matter around the black hole falling into the black hole under the action of gravity and releasing gravitational potential energy at the same time.

recently, American astronomers have observed and measured 76 black holes, and found that their magnetic field strength is 1, times that of the earth.

supermassive black holes in the center of active galaxies usually produce "jets". The magnetic field may also play a key role in jet formation and accretion disk physics. Scientists have recently discovered a dynamic magnetic field near the black hole in the center of the Milky Way. If this phenomenon is universal and the magnetic field can extend beyond the event horizon of the black hole, the accretion disk structure will be significantly affected.

The gas emitted by the supermassive black hole observed by scientists proves the strength of its magnetic field. These gas jets are formed by magnetic fields and generate electromagnetic radiation. The radio wave radiation emitted from the black hole jet can be used to measure the magnetic field intensity near the black hole.

In this study, after analyzing some data, radio radiation patterns with different wavelengths are drawn, and then the magnetic field intensity near the black hole is calculated according to the change of jet characteristics between different radiation patterns.

the results show that the magnetic field intensity of a black hole is similar to that of the "magnetic resonance imaging" (MRI) in the hospital-about 1, times that of the earth.

Crossing the planet

Possibility: It's only a matter of time

Plot: There are many "brain-opening" plots in Interstellar. For example, they entered a planet full of water, and in order to escape the huge waves like mountains and rivers, they flew off the planet.

In the future, can we really leave the earth and go to Interstellar? Astronomers say that at present, the scientific community believes that parallel universes exist. "Maybe, on another planet, there is an identical you, but you didn't find it yourself."

So, can we live on other planets in the future? Wang Sichao, a researcher at the Purple Mountain Observatory of the Chinese Academy of Sciences, said that the answer is yes, only a matter of time. "Not through the wormhole through the past, but by spaceship. Of course, the speed of the spacecraft must reach above the speed of light. "

The asteroid landing plan

looks like Interstellar

Interstellar actually has a realistic version. According to foreign media reports, NASA will carry out an unprecedented space exploration plan in the next decade, capture asteroids and send astronauts to explore them. This plan will be completed in the 22s to prepare for manned landing on Mars. Except that it is impossible to enter the black hole through the wormhole, the details of the asteroid landing plan are similar to the plot of Star Crossing.

first of all, everyone has two plans. Interstellar has two plans, plan A: using the super-large space station to take humans away from the earth; Plan B is to take fertilized eggs and start breeding after finding a livable planet; The last star of the film, Edmunds, is the place where Plan B is implemented. At present, NASA also has two options for robotic asteroid capture. Plan A: Capture a small asteroid in natural orbit; Plan B is to retrieve a boulder from a large asteroid. NASA will decide the capture scheme in December this year and hold a "mission concept overview" early next year, which will further refine the mission design.