For the vast universe, humans actually know very little.However, space is clearly not suitable for human survival.From deadly radiation to explosive superstars.The galaxy is so dangerous that the bravest astronauts are scared.Even if you encounter fear and surprise,humans still have to explore the universe and discover such mysterious things.
Speed Of Light
Everyone likes to imagine themselves crossing the Milky Way at the speed of light, about 299,792,458 meters per second.however, reality may not be that interesting and more deadly.When in contact with objects moving at speed of light,hydrogen atoms are converted into highly radioactive particles.that can easily destroy the crew on the interstellar spacecraft and destroy electronic equipment in seconds.It is just a few bunches of scattered hydrogen floating in the universe.its radioactive output is equivalent to the proton beam produced by the Large Hadron Collider (lhc).
Every year the moon increases its distance from the Earth by 4 centimeters.Although this does not seem like much at first.it may have a devastating effect on our planet in the future.Although the gravitational field of the Earth is enough to prevent the moon from spiraling into space.the increase in distance between it and the Earth will eventually slow down the Earth’s rotation.One day will last for more than a month.the tides of our oceans will also be problematic.
Black holes are usually formed by the death of massive stars.They are extremely dense areas of space with strong gravitational forces that capture light and distort time.Just a small black hole in the solar system.Which will throw the planet out of the orbit and tear the sun into pieces.
The gamma ray explosion is the most powerful type of explosion in the universe.It is a strong, high-frequency burst of electromagnetic radiation.that carries energy in milliseconds equivalent to the energy.Which our sun releases throughout its life cycle.If one of the rays hits the Earth,it can destroy the ozone layer in a matter of seconds. Some scientists even attributed the extinction of 440 million years ago to the gamma-ray burst that hit the Earth.
Known scientifically as microgravity.this happens when an object is in a free-falling state and looks like no weight.Although it seems interesting to float in the air like an astronaut.long-term floating in a weightless state can have a long-term impact on the human body and mind.
Cold Pressure Welding
On Earth, gases in the atmosphere react with metals to form a thin layer of oxide.However, the vacuum in space has no atmosphere.so it does not form an oxidation reaction on the metal.which leads to an interesting reaction.This reaction is called cold welding.which causes the two molecules of the same molecule to be permanently fused together as if they were one.Although this sounds clever,it has caused quite a lot of problems on the first satellite and may make space repair very tricky.
Rogue planets are planets that can roam freely in the universe,colliding with objects as they operate.Because they do not run around the sun,the surface temperature of a rogue planet is usually freezing.However, due to their molten core and icy insulation.some scientists have concluded that these free-roaming planets may contain a large number of submarines that support life.
Depending on where you are in space,you may find yourself in some very extreme conditions.Supernovas can release up to 50 million degrees Celsius or more,five times as many as nuclear explosions.At the other end of the spectrum, the cosmic background temperature is -270 degrees Celsius that slightly above absolute zero.
In The Dark
In space, darkness represents a completely unexplored and continually infinite emptiness.so fear of being lurking outside our line of sight is a perfectly understandable response.
The magnetic star is a very dense neutron star.the matter is squeezed into a space that is only 10 to 15 miles wide. The quality of a spoonful of magnets is equivalent to the 900 Great Pyramids of Giza. They are also the hosts of the strongest magnetic fields in the known universe.they are so strong that anything that is too close will be torn at the atomic level.
On Earth,it is hard enough to maintain a healthy level of exercise.but it is even harder under zero gravity conditions in space.Astronauts entering the International Space Station showed signs of significant.that muscle atrophy in space for only six weeks.so they needed to pass a strict fitness program.
Although its name comes from the Roman god of love,Venus may be the most infernal planet in the solar system.The surface temperature of Venus is close to 500 degrees Celsius. the atmospheric pressure is 90 times that of the Earth.there is continuous sulfuric acid rain. This is definitely not the planet you want to go.
The Earth’s atmosphere and magnetic fields protect us from harmful substances such as radiation.Cosmic rays, solar winds, and electromagnetic particles fill the universe.so that astronauts between Earth and Mars receive radiation equivalent to a full-body CT scan every five to six days.
The sun constantly uses nuclear fusion to combine hydrogen and helium to keep it burning.however, its hydrogen is not infinite.when it is exhausted, the sun becomes hotter.so the earth’s atmosphere will Burned.The ocean will turn into a fire pit and completely evaporate.Then, once all the hydrogen in the sun has disappeared.it will expand outward into a red giant star,engulfing the earth.
The supernova is 100 times more powerful than a standard supernova.It is a powerful explosion after the death of a massive star.Although the factors that lead to the production of supernovae in stars are widely controversial.we know that the result is usually a black hole or a neutron star.Supernovas are also a source of gamma-ray bursts in the universe.their brightness is sufficient to observe by telescopes millions of years away.
Space is actually a perfect vacuum.which means your ears won’t hear anything outside the space shuttle.
Due to the lack of gas,sound waves do not exist in space.
but the sound still propagates through space through electromagnetic vibration.
NASA recorded some vibrations from specific celestial bodies in the solar system and played them back.
creating some really horrifying sci-fi horror effects.
Everything In Space Can Be Fatal
Advances in technology have made today’s space flight safer than in the past.
In the 1970s, nearly 30% of people who entered space died.
however,the farthest place we have been to the moon is the moon.
The risk of going to Mars will increase tenfold.
Super-fast stars thought to be the result of close contact with black holes.
which ejected from galaxies.travel through the space between galaxies at speeds of up to 2 million miles per hour.
Although we have seen most of the super-fast stars.
so far are similar in size and mass to the sun.
in theory they can be of any size,even at incredible speeds.
Although it sunburn occasionally by the sun.the sun has provided us with warmth and light for billions of years.
The sun compose a huge gas of hot plasma.
that can randomly emit a large amount of solar radiation.
Although these solar flares are unlikely to directly endanger any life on Earth.
they generate electromagnetic pulses that destroy the grid.
interfere with radio communications and disable the technology.
There is no air in space.
but this means more dangerous than holding your breath for a long time.
The human body has adapted to the atmospheric pressure on Earth.
which is why you may feel tinnitus when you are flying or traveling on a mountain road.
There is no air pressure in the vacuum of the space.
At the moment you step out of the spaceship.all the water in your body will evaporate.
That swell rapidly until you burst like a balloon filled with water.
Scientists agree that the universe is likely to have a decisive end.
but how it will happen is still uncertain.
A popular theory holds that there will be a large contraction in which the gravitational force in the universe will reach its limit.
In addition,causing the entire universe to stop expanding and folding toward itself.
eventually gathering into an infinitesimal point and then disappearing.
Another theory, called the Great Tear Theory.
argues that the universe will expand to the point where gravity loses its total collapse.
even the particles in the atom will eventually move away from each other.