Uncovering the Mysteries of the Universe: Little-Known Astronomy Facts
The universe is estimated to be about 13.8 billion years old.
The speed of light is about 299,792,458 meters per second or approximately 186,282 miles per second.
The largest known structure in the universe is the Hercules-Corona Borealis Great Wall, a vast group of galaxies located approximately 10 billion light-years away from Earth.
There are an estimated 100 billion galaxies in the observable universe, each containing an average of 100 billion stars.
The closest star to our solar system, Proxima Centauri, is approximately 4.24 light-years away.
Black holes are extremely dense objects with gravitational fields so strong that not even light can escape from them.
The universe is expanding at an accelerating rate, and the cause of this acceleration is still not fully understood.
About 95% of the universe is made up of dark matter and dark energy, two mysterious and invisible substances that cannot be directly observed.
Gamma-ray bursts are the most energetic events in the universe, releasing more energy in a few seconds than the sun will produce over its entire lifetime.
Astronomers use a variety of telescopes and observatories, including optical telescopes, radio telescopes, X-ray telescopes, and space-based observatories, to study the universe in different wavelengths of light.
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