The vast universe always hides secrets that space science has not yet solved. Some of these mysteries have been discovered by humans such as planets, stars, Earth’s gravity … But there are still many mysteries about the universe that baffle astrophysicists: inside black holes nothing, dark matter, the end of the universe…
Cosmic mysteries that people are still looking for answers to so far
Here are a few conundrums related to the universe that people are still “writhing through” to find the final answer.
What is the universe made of?
Scientific research publications about the solar system, the Milky Way make many people believe in human understanding of the vast and vast universe. But there is a surprising fact that we have only found about 5% of the ingredients that make up the mysterious extraterrestrial space.
In fact, all of the cosmic constituents that humans perceive are “light” forms of matter. They include the elements of the periodic table, the collection of molecules, atoms and the system of smaller particles that make up them such as protons, electrons, neutrons, etc. All of which are the constituent elements of our Earth. us, but only 1/20 of what makes up the universe.
The question is what is the remaining 95% of the universe? Humans know of their existence but cannot see or study them specifically, directly because these components are invisible. They are “dark” matter – 25% of the universe, and “dark” energy – 70% of the universe.
Specifically, “dark” matter is not luminescent and is considered to be present around galaxies and galaxy clusters. Experts call them “invisible cloaks”. Humans only know of their existence because they can measure the mass and gravity they exert on “bright” matter.
“Dark” energy is even more mysterious. They are believed to be the type of energy that exists in the universe, capable of accelerating galaxies closer together or further apart. However, an exact theory on this issue has not yet been born, and the scientific community is still “giving up” on this question.
Is man alone in the universe?
Since the birth and development of space science, a question that has always bothered the whole human society is whether there is anyone outside of Earth? Humans have launched spacecraft, explored many planets in search of other life, but so far, the above question has not been answered.
How many Earths are there in this universe?
Many hypotheses are proposed today to guide the research work. A typical example is the multiverse theory , which comes from William James’s term of the same name in 1895. Accordingly, it is assumed that there are many parallel universes along with the one in which we live.
Model of the multiverse theory
From this theory, modern research today mostly says that humans have “neighbors ” in other planets and universes. In 2011, to accurately answer the above question, some US scientists used the most advanced technology to send radio waves into space .
This wave propagates if detected by aliens , they will send the response waves back to Earth. According to them, with this method, within 20 years, we can determine whether there are alien civilizations or not.
Are humans alone in this universe?
What is inside a black hole ?
Black holes are the remains of stars that self-destruct under their own gravity n. It is known as the fierce god in the universe, able to ” swallow ” all planets, celestial bodies and even light if it is unfortunately located on its horizon.
So what is inside the cosmic black hole, no one has the answer. We only know that black holes have great attraction and any planet that gets sucked into the black hole will disappear without a trace.
Many theories have been put forward to explain this phenomenon. The latest study in 2013 published in the journal New Scientist suggested that the black hole does not destroy the planets and objects it attracts.
Is a black hole a gateway to other universes?
A black hole is actually a portal to space , sending everything into a universe other than the one we live in. Accordingly, it is likely that black holes can be a research clue for humanity’s dream of traveling through space and time.
How to get more energy from the Sun ?
Humanity is facing a permanent energy crisis as fossil fuel resources are gradually depleted. The search for alternative energy sources is still being researched and solar energy is always seen as a great savior.
However, it is a fact that solar energy is currently underutilized. Although there are scientific and technical developments, the efficiency of solar cells is still not really high, only about 16%. On the other hand, due to natural conditions, not every land on Earth has the ability to use solar energy well.
Solar cell efficiency today is not really high
The other question that arises is whether humans can possess this limitless and abundant energy source to solve the predicament on Earth? And now, scientists are still working hard to find a solution to that conundrum.
The possibility of life on Mars
Life likely once existed on Mars and may even exist today. Mars used to have vast oceans. Scientists have found evidence that liquid water is still periodically flowing on the surface of Mars. Many countries are planning to send explorers to Mars to find out.
Origin of high-energy cosmic rays
Cosmic rays are streams of high-speed particles that travel through space and sometimes collide with Earth. But scientists haven’t figured out their origin yet. ” The lowest-energy cosmic rays come from the Sun in the form of a stream of charged particles called the solar wind. However, determining the source of the high-energy cosmic rays is more difficult because they come from the sun. field in interstellar space ,” said astrophysicists at the European Organization for Nuclear Research (CERN).
Site of fast radio pulse (FRB)
A fast radio pulse is a millisecond-long burst of radio waves in space. Like cosmic rays, scientists don’t know where the fast radio pulses are generated. One theory is that they have the same origin. But other opinions assert that RFB originates from events that are hard to repeat.
Why is there more matter than antimatter?
When a matter particle and an antimatter particle collide, they annihilate each other. If the number of particles of matter and antimatter were equal, the universe would not exist. According to scientific theory, the Big Bang created equal amounts of two types of particles. But for some reason, this explosion created more matter particles. According to astrophysicists at CERN, one of the biggest challenges in physics is figuring out what happens to antimatter particles.
Femi . Balloons
These bubbles are giant and mysterious structures that originate from the center of the Milky Way and span about 20,000 light-years, located above and below the plane of the Milky Way. This strange phenomenon was first discovered in 2010, accompanied by intense gamma rays and X-rays, which we cannot see with the naked eye. Scientists speculate that gamma rays could be shock waves from stars swallowed by the massive black hole at the center of the Milky Way.
Notably, since it was first discovered until now, the Fermi Bubble has caused astronomers around the world a headache because it has not been able to find the origin of this giant gamma-ray structure.
Rectangular galaxy
Astronomers from Australia, Germany, Switzerland and Finland have discovered a strange astronomical phenomenon about 70 million light-years away – the galaxy LEDAO74886, which is shaped like a rectangle.
Although most galaxies around us are shaped like a disk, a three-dimensional ellipse or an irregular bubble, some speculate that this shape was formed by collisions. of two spiral galaxies, but no one knows when it happens and no exact answer with full scientific basis has been given.
The Moon’s Magnetic Field
There is a mystery about the moon that has puzzled astronomers for a long time, even this inspired the mysterious rock buried in the ground in the movie “2001: A Space Odyssey”. This mystery is why only certain parts of the moon’s surface appear to have magnetic fields.
But after conducting many tests and analyzing the moon’s surface, scientists believe that the moon once had a magnetic field – about 450 million years ago.
However, now this magnetic field has disappeared because the angle between the moon’s crust and core is gradually getting smaller, while the distance from the moon to the Earth is also getting wider, making the gravitational pull of the tides. gradually decreased.
Why does a Pulsar have a pulse?
A pulsar is a distant neutron star that rotates rapidly and emits a beam of electromagnetic radiation at a certain distance, like a beam of light that is rotating and sweeping over a coastline. Although the first pulsar was discovered in 1967, scientists have long wondered why these stars can emit pulsations and why pulsars stop pulsating intermittently.
However, in 2008, when a pulsar suddenly stopped pulsing for 580 days, scientists discovered that the length of time it takes to pulsate or not to pulse is related to the pulsar’s own electromagnetic field and which causes its rotational speed to decrease. Astronomers are still trying to figure out why the electromagnetic field fluctuates.
How will the universe end?
Astronomers estimate that the Sun will destroy the Earth in about 6 billion years . Several theories about the end of the universe have been put forward. According to thermodynamics, the universe can perish when all matter in the universe has the same temperature. That means all stars will perish and all matter will perish. Another opinion is that an event contrary to the Big Bang, the Big Crunch, will occur. If the universe continues to expand, eventually gravity will become too great, causing everything to contract. The entire universe will become a solid mass and the universe will come to an end.
