These explosions generate beams of high-energy radiation, called gamma-ray bursts (GRBs), which are considered by astronomers to be the most powerful thing in the universe. What's more, these GRBs could be killing our chances of ever discovering life on other planets.
Scientists have unlocked one of the biggest mysteries of quasars – the brightest, most powerful objects in the Universe – by discovering that they are ignited by galaxies colliding. First discovered 60 years ago, quasars can shine as brightly as a trillion stars packed into a volume the size of our Solar System.
Nuclear Power is the Most Reliable Energy Source and It's Not Even Close | Department of Energy.
In astrophysics and nuclear physics, nuclear pasta is a theoretical type of degenerate matter that is postulated to exist within the crusts of neutron stars. If it exists, nuclear pasta would be the strongest material in the universe.
Yet if Swift-Tuttle were to strike Earth, it would release more than one billion MegaTons of energy: the energy equivalent of 20,000,000 hydrogen bombs exploding all at once. Without a doubt, the comet that gives rise to the Perseids is far and away the single most dangerous object known to humanity.
Almost every galaxy can be classified as a spiral, elliptical, or irregular galaxy. Only 1-in-10,000 galaxies fall into the rarest category of all: ring galaxies.
The most powerful supernova yet recorded (ASSASN-15lh) was 22 trillion times more explosive than a black hole will be in its final moments. It doesn't matter how small or how massive a black hole is, their closing fireworks are exactly the same. The only difference is how long it will take a black hole to explode.
The Most Powerful Thing in the World is the Human Mind.
Love could give you the ability to endure struggles, work hard, and make sacrifices. For example, if you're going through a difficult time and have the people you love nearby, you might feel better than if you were struggling alone. Studies also show that love can reduce the chance of physical pain and disease.
Black holes are infinitely dense and infinitely small so they end up bending the space around them so much that they end up turning it into a sort of funnel that would cause anything that came too close to fall in.
1. Black hole in galaxy NGC 4889. This unnamed intergalactic goliath is the current heavy-weight champion. Located in the constellation Coma Berenices about 300 million light-years from Earth, it has a mass 21 billion times greater than our sun.
Astronomers first discovered quasars, considered to be the brightest and most powerful objects in the universe, 60 years ago — but they didn't understand their origin. Now, scientists think they have unlocked the mystery behind what ignites these celestial objects.
Since nothing can escape from the gravitational force of a black hole, it was long thought that black holes are impossible to destroy. But we now know that black holes actually evaporate, slowly returning their energy to the Universe.
The hierarchy problem
It didn't take a lot of effort because gravity is, by far, the weakest of the four fundamental forces of nature. By one measure, gravity is a thousand billion billion times weaker than the strong nuclear force, the strongest of all the forces.
The dominating form of energy in the cosmos, dark energy is driving the accelerating expansion of the universe, but its nature remains a complete mystery.
The United States is the most powerful country in the world. Its capital is Washington, DC. The country has the highest GDP of $23 trillion.
United States. The United States of America is a North American nation that is the world's most dominant economic and military power.
The strongest land animal in the world is the elephant. The typical Asian elephant has 100,000 muscles and tendons arranged along the length of the trunk, enabling it to lift almost 800 pounds. The gorilla, the strongest as well as largest primate on the planet, is at least six times stronger than the average human.
There is no way a black hole would eat an entire galaxy. The gravitational reach of supermassive black holes contained in the middle of galaxies is large, but not nearly large enough for eating the whole galaxy.
New research motivated by string theory suggests possible, and equally strange, fates for evaporating black holes. We still don't know exactly what happens when black holes die. Ever since Stephen Hawking discovered that black holes evaporate, we've known that they can potentially disappear from our universe.
Given how many black holes we expect are out there and how long our Solar System has been around, that's only about a ~0.000000001% chance, or 1-in-100 billion, that any planet would encounter a black hole over the past 4.5 billion years.
The XENON1T detector has allowed scientists to observe an ultra-rare event: the radioactive decay of xenon-124. In a subterranean laboratory, about a mile below Italy's Gran Sasso mountains, scientists are hunting for dark matter using an incredibly powerful detector full of liquid xenon.
By far the largest amount of matter is dark and consists of unknown particles. If that wasn't mysterious enough, the vacuum of empty space is filled with a mysterious dark energy that accelerates the expansion of the Universe.
There are no human bodies lost in space. Most spaceflight-related accidents that involved people have happened while still on Earth. The only three people who have died in space are the cosmonauts of the Soyuz 11. The accident occurred during reentry and the capsule landed on Earth so their bodies were recovered.