In fact, human knowledge of the universe is much richer than knowledge of the ocean, but there are still countless mysteries about the universe that people have not been able to solve so far. clear.
1. Fermi Bubbles
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 due to not being able to find the origin of this giant gamma-ray structure.
2. 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.
3. 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 crust and the core of the moon is gradually getting smaller, while the distance from the moon to Earth is also getting wider, causing 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 rotating beam of light that sweeps across 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 pulsating 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.
- Dark matter
Source text Astrophysicists are currently trying to observe the influence of dark energy – which makes up about 70% of the energy in the entire universe. But it’s not the only dark energy in the universe: about 25% of it is made up of a completely independent matter, called dark matter. Dark matter is invisible to telescopes and the naked eye, nor does it absorb or release visible light (or any form of electromagnetic radiation), but its gravitational effects are particularly pronounced. evident in galaxies and single star clusters. Although dark matter has proven to be particularly difficult to study, many scientists speculate that it may be composed of subatomic atoms (something quite different from the matter that makes up its surroundings). we).
- Are we still alone in the universe?
In 1961, astrophysicist Frank Drake came up with a controversial equation: By combining a series of probabilities of extraterrestrial life (the rate of star formation in the universe, the rate of stars with planets, having proportions of planets suitable for the existence of life, etc.) are multiplied together.
He speculates that there may be life forms with high IQs on other planets. But there’s a problem: despite Roswell’s conspiracy theory, we’ve yet to hear from aliens. However, recently discovered distant planets that could theoretically give birth to life have raised our hopes of detecting aliens. All we have to do is keep looking for them.
- How will the universe end?
Everyone thinks that the universe started with the Big Bang. But how will it end? Based on a wide range of facts, theorists believe it is likely that the fate of the universe will end in completely different ways. If the total amount of dark energy was not enough to counteract the compressive force of gravity, the entire universe would collapse into a mirror image with the Big Bang, known as the Big Crunch.