Facts about space that you frighten and surprise at the same time
Space, the final frontier. Humanity knows and understands is actually very little about the vast universe in which we live. However, what we know for sure is that the space is very clearly trying to do everything possible to kill us.
From the deadly radiation before exploding superstars, the galaxy is quite dangerous that even the most daring (and desperate) to get astronauts to think twice before leaving our beautiful, protective atmosphere.
However, humanity is going to go into space and begin to explore outer space, so to make sure that we know exactly where to get involved, in front of you - 25 facts about space that scare you and surprise you!
25. The speed of light
Many people like to think of myself flying through the galaxy at the speed of light (about 299,792,458 meters per second), but in reality this may not be as nice as inevitably fatal.
Coming into contact with the object, moving at the speed of light, the hydrogen atoms are converted in a highly radioactive particles which can easily destroy the spacecraft crew and its entire electronics for a few seconds. Only a few wandering Space hydrogen atoms may be radioactive yield equivalent proton beam, creates large hadron collider.
The Moon 24.
Each year, our Moon is moving away from Earth nearly 4 cm and, although at first glance it may seem nonsense, the future can have devastating consequences for the planet.
Although the strength of the gravitational field of the Earth should be enough for it to hold the moon and do not let her go out of orbit, increasing the distance between it and the Earth will eventually slow down the rotation of the planet to the point that one day will last longer than a month, and ocean tides are locked on place.
23. Black holes
formed, as a rule, due to the death of massive stars, black holes are superdense regions of space-time with such a strong gravitational pull that they can catch in his trap light and distort time.
Only a small black hole in our solar system would throw the planet out of orbit and the sun break into pieces. If this is not scary enough in itself, then add that black holes can race across the galaxy at a speed of several million miles per second, leaving behind a trail of destruction.
22. Gamma radiation
The most powerful type of explosion in the universe, gamma-ray bursts - is an intensive high-frequency electromagnetic radiation flash, which carry the same amount of energy, in milliseconds, how much sun will provide for all their existence.
If one of these rays hit the Earth, it would deprive the ozone atmosphere in a matter of seconds, and some scientists have even credited with the mass extinction that occurred 440 million years ago, bursts of gamma rays that hit Earth.
is scientifically called microgravity, this condition occurs when the object is in free fall and experiencing weightlessness. Although it may look funny - hover in the air like astronauts - stay in a state of weightlessness for a long time may have a mental and physical effect on humans in the long term.
20. Cold welding
In our world gases in the atmosphere react with the metal, creating a thin layer of oxidation. The vacuum of space, however, does not have the atmosphere and therefore does not lead to oxidation, and metals deforming resulting in an interesting reaction. This reaction is called cold welding occurs when two metal single molecular composition are pressed against each other and joined together on a continuous basis as if they were one piece. Although it sounds neat, it caused a lot of problems in the first satellites and can make repairs in space is very complicated.
19. An alien life
The universe is huge and incredibly old, so the chances of other planets similar to Earth, with a developing life is unlikely. According to the Fermi paradox is a high probability of extraterrestrial life in outer space is not compatible with the lack of visible evidence to support this. At this point we are not sure that the worse: the fact that we might not be the only ones in the universe, or the likelihood that we are alone.
18. Wandering planets (planets orphans)
Running after the formation of the cosmos in its planetary system, wandering the planet - it's the planetary body, which can move freely in space, bumping into space objects in its path.
Due to the fact that they do not move along the orbit of the sun, wandering planets often have freezing surface temperature. However, because of their molten cores and glacial isolation, some scientists believe that these freely wandering the planet could contain vast underground oceans, capable of being the source of life.
17. The travel time is
In 1969, the lunar module "Apollo 11" took 3 days to get prilunitsya and on our own natural satellite, the Moon. Since then, technology has evolved greatly.
We could reach Mars in 7-9 months, and the flight to Pluto would take about 10 years. Distances outside our solar system have become even more extreme; Even traveling at the speed of light, the flight to the nearest star, Alpha Centauri would take us more than 4 light years, and more than 100,000 years to reach the center of the Milky Way galaxy.
16. Extreme temperatures
Depending on where you are in space, chances are you will find yourself in quite extreme conditions. Heat generated supernova, can reach a temperature 50 million degrees Celsius or more - 5 times larger than a nuclear explosion. At the opposite end of the spectrum of cosmic background temperature is -270 degrees Celsius, is only slightly warmer than absolute zero. You definitely will not want to forget my jacket.
Fear of the dark - not just stupidity, experienced by children; is an evolutionary feature that people have developed in order to protect themselves from the dangers lurking in the dark. The only reason that in our time the adults do not fear what they can not see, is that they have learned from their own experience that the probability of monsters hiding under the bed, is extremely low.
However, in the darkness of space it is a completely unexplored void that extends to infinity, so that the fear of the dangers lurking outside our visibility is quite understandable reaction.
Magnetars (or magnetars) - it's incredibly dense neutron stars. In fact, in most cases - a whole stars, trimmed into spheres just 15 miles (24 14 km) across.
Matter magnetar volume with teaspoon has the same weight as the 900 Great Pyramids of Giza. Magnetars also exhibit the strongest magnetic field known in the universe. It is so strong that everything is coming too close to them, is broken at the atomic level.
13 Musculoskeletal atrophy
Maintaining health through exercise hard enough here on Earth, but in conditions of weightlessness, it can be even harder. Astronauts who visited the International Space Station, had expressed considerable signs of muscle atrophy after only 6 months, spent in space, and it is given a strict fitness program to maintain health.
Despite the fact that his name this planet was named after the Roman goddess of love, Venus, perhaps, is the most malicious planet in our solar system.
With a surface temperature of about 500 degrees Celsius, atmospheric pressure is 90 times greater than that of Earth, and constant rains sulfur, Venus would kill you in a moment, if you decide to make on her landing. It's definitely not the same planet on which you would want to have a picnic.
11. The dark matter / dark energy
We know very little about our universe. In fact, we only saw less than 5% of what it is made. The remaining 95% - this is dark matter and dark energy. About a quarter of the universe consists of dark matter, the mass of which we can not see or find in space, but that there must be due to its effect on the behavior of the surroundings.
The rest of the universe - a dark energy, the true nature of which is for the most part unknown. However, we are pretty much sure that it plays a crucial role in the expansion of the universe.
10. The radiation background
The Earth's atmosphere and magnetic field protect us from some really nasty things, namely - radiation. Cosmic rays, solar wind and electromagnetic particles passing through the universe, so powerful that astronauts traveling between the Earth and Mars, would receive a dose of radiation equal to irradiation with computer tomography of the whole body for 5-6 days. Anyone who would never have radiation sickness to an end, would almost certainly have developed a severe form of cancer in their lifetime.
9. The expanding Sun
Our Sun constantly uses nuclear fusion to combine with hydrogen and helium to maintain its combustion. However, the amount of hydrogen it is not infinite, and, to the extent that it is used, the sun is getting hotter and hotter. In the end, it becomes so hot that it will burn the Earth's atmosphere and our oceans boil and evaporate completely. Then, when the hydrogen in the sun is gone, it expands in size to become a red giant and engulf the Earth once and for all.
With 100 times more energy than an ordinary supernova, hypernovae stars - are powerful explosions occurring after the death of a massive star.
While the factors due to which the star becomes hypernova widely disputed, we know that as a result of this often appears black hole or neutron star.
Hypernovae stars are also sources of gamma-ray bursts in the universe, and they are bright enough that they can be seen through a telescope at a distance of millions of light years.
7. The electromagnetic fluctuations
Space - it's almost perfect vacuum, which means that you can count on the fact that your ears do not hear any sound while you're in the open space. Although the idea of silence can be a maddening in itself, do not assume that if there is nothing you can not hear, there are no sounds.
Due to lack of gas, by which they can propagate sound waves in space not, but still sounds are transmitted by means of electromagnetic oscillations. NASA recorded some of these vibrations emitted from individual celestial bodies in our solar system, and lost them in the opposite direction, to get really frightening effect of the sci-fi horror.
6. You can kill all
In space, there is no room for error; even the smallest mistake can kill you and kill. Of the 430 people sent mankind into space, 18 never returned. Advances in technology led to the current flights into space is much safer than it was before. In 1970 almost 30% of people sent into space, died. However, the most distant, where we went - this is our moon. Flight to Mars would increase the risk by 10 times, and flight beyond is still beyond our capabilities.
5. Slowing down time
Imagine an astronaut traveling through outer space at a speed close to the speed of light. Now imagine a person standing on the Earth. According to Einstein's special theory of relativity to an astronaut time will go much more slowly than a stationary person, although each of them will not feel any difference of passing time.
When astronaut finally returns home, even if since he left Earth, on her many years have passed, it will be younger than he would be if all this time spent on Earth. This happens because the physical processes in the moving body is slower than stationary. This is known as "time dilation", and although we have yet to develop a technology that would allow people to move at speeds high enough to observe this effect, we have already seen an example of it in the study of high-speed particles in the laboratory.
4 stars Hyperspeed
considered the result of a close encounter with a black hole, hypervelocity stars are stars that have been thrown out of their systems, go surf intergalactic space at speeds of up to 2 million miles (3, 218 million kilometers) per hour.
Although the majority of hypervelocity stars, which we have already identified, have the size and mass as the Sun, they can theoretically be of any size and reach even more incredible speed.
3. Solar flares
Although happen from time to time burns, our sun gives us heat and light for billions of years. However, do not let our local star mislead you.
Our Sun - a huge miasma of red-hot plasma, which can be randomly shoot massive bursts of solar radiation. Although they are unlikely to have a direct danger for any form of life on Earth, the solar flares can create electromagnetic pulses, which are able to destroy the power system, become an obstacle to radio communications and knock out all of the technology.
In space there is no air, that's understandable. However, this implies a greater danger than just the need to hold their breath for a long time. The human body adapted to Earth's atmospheric pressure, which is why, when you take off in an airplane or riding on mountain roads, you can feel the clicks in the ears.
In a vacuum, there is no air pressure. As soon as you leave the spacecraft in outer space, all the liquid in your body starts to boil and evaporate rapidly expanding as long as you do not burst like a balloon crowded.
1. High compression / large gap
Everything must come to an end, but there will be the end of everything? Scientists agree that, most likely, the universe would be a definite end, but how it will happen, still remains unclear.
One prevailing theory states that there will be a large contraction in which the gravitational forces of the universe will reach its limit and lead to the fact that the entire universe will stop expanding and begin to contract, eventually merged into one infinitely tiny dot before disappearing into nothingness. Another theory, known as the "big gap", states that the universe will expand to such an extent that gravity will lose all meaning and space literally fall apart; even particles in atoms, in the end, to float away from each other. We honestly can not decide which is worse.