45 Fakta Seputar Luar Angkasa Ini Pasti Membuatmu Takut Sekaligus Kagum

Summary

This video explores the mysterious and awe-inspiring phenomena of black holes, stars, and cosmic events. It covers the captivating story of a star that survived a close encounter with a black hole, the behavior of celestial bodies within galaxies, and the potential fate of stars turning into planets. Additionally, it delves into the scale of the universe, its invisible dark energy, and the intriguing features of planets and moons in our solar system. With a mix of scientific facts and fascinating discoveries, the video paints a vivid picture of the wonders and dangers of the cosmos.

Takeaways

• 😀 Black holes can cause spectacular light shows and destruction, but one star managed to escape after being consumed by a 441 kg black hole.
• 😀 A star that encountered a black hole turned into a white dwarf after its outer hydrogen layer was consumed, and it continues orbiting the black hole in an unusual path.
• 😀 The Milky Way and other galaxies have supermassive black holes at their centers, with some weighing billions of times more than the sun.
• 😀 Despite their enormous size, black holes in our galaxy are far enough away from Earth that they do not pose a threat to our planet.
• 😀 Black holes can devour other black holes that venture too close, merging into even larger entities.
• 😀 Although space is filled with gravity, stars, and galaxies, 95% of the universe consists of dark energy (68%) and dark matter (27%), which are still largely unknown.
• 😀 The sun will never become a black hole because it is not massive enough to undergo a gravitational collapse into one.
• 😀 Jupiter's Great Red Spot is a giant storm that has been raging for centuries, and it is larger than Earth itself.
• 😀 The moon’s gravity is only 17% of Earth's, making it easier to move and jump on its surface, but dangerous due to deep holes in the terrain.
• 😀 Astronauts in space suits do not walk on the moon’s surface; they float, and their skin can peel off because of the low gravity.

Q & A

What happens when a star enters a black hole?

When a star enters a black hole, it usually results in a spectacular light show and the destruction of the star. The black hole consumes the star's outer layers, often leaving behind its core.

How did astronomers discover the star that escaped a black hole?

Astronomers observed a fiery burst of X-rays every nine hours from a galaxy 250 million light-years away, initially thinking it was a distress signal from a star trapped by a black hole. They later found out the star had managed to escape after being partially consumed by the black hole.

What is the significance of the star that escaped the black hole?

The star was a red giant that was partially devoured by a black hole, with its outer hydrogen layer consumed, leaving behind its core. The star eventually became a white dwarf but managed to escape being fully consumed, staying in orbit around the black hole.

How does gravity affect the star’s orbit around the black hole?

The gravity from the black hole causes the star's orbit to become more elliptical. Over time, the orbit path rotates, and the star loses mass, which makes its orbit more circular as it continues to be affected by the black hole's gravity.

What is the potential future of the star that escaped the black hole?

Scientists believe that in a trillion years, the star might escape the black hole's gravitational pull and eventually turn into a planet the size of Jupiter.

How far are black holes from Earth, and are they a threat?

The closest black hole to Earth is about 1000 light-years away. Despite their enormous size, black holes are not close enough to destroy Earth, and the radius of a black hole is small compared to its gravitational influence.

Can the Sun ever become a black hole?

No, the Sun will never become a black hole because it lacks enough mass. A black hole forms from stars that are 20-30 times the mass of the Sun, so the Sun will eventually become a white dwarf instead.

What are supermassive black holes and where are they found?

Supermassive black holes are located at the centers of almost every major galaxy, including our own Milky Way. They can weigh billions of times more than the Sun and have the ability to devour stars, planets, and even other black holes.

What is the Great Wall of Hercules-Corona Borealis?

The Great Wall of Hercules-Corona Borealis is the largest known supercluster in the universe, spanning over 10 billion light-years in width. It is an enormous structure that connects galaxy clusters.

What causes a star to behave strangely and indicate the presence of a black hole?

A star that spins very fast or exhibits unusual behaviors is often a sign that it has a strong gravitational companion, such as a black hole. The irregularity in the star's movement is due to the black hole's gravitational influence.