Today, I'm setting off on a journey toward the nearest black hole. But don't worry - I'll keep you in the know by live-streaming my entire adventure! I'll have someone to talk to during the flight, and he can help me if things get really tough! My travel buddy's name is Liam. Liam is a robot with artificial intelligence.
Space distances are seriously long. That's why traveling there would take way more time than you'd like to spend on the road! For example, Voyager 1, a space probe launched in 1977, was traveling out of the Solar System at a speed of 40,000 miles per hour. If my spacecraft moved at the same speed, it would take me a whole 77,000 years to get to the nearest star! But luckily, my spaceship is much faster than that. So let the journey begin!
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TIMESTAMPS:
The most expensive single object in the world 1:28
Low and high satellites 2:29
240,000 miles away from Earth 🌍 3:22
What an astronomic unit is 4:33
Outside of the Solar System ☀️ 6:28
The point of no return 7:18
Goodbye, Liam! 👋 8:03
#space #blackhole #brightside
SUMMARY:
- The International Space Station is the most expensive single object in the world. This money would buy you 250 Boeing 747s or two Louvre's with all the paintings and artwork inside!
- Among satellites, there are low and high flyers. And while the lowest flying ones move approximately 1,250 miles away from Earth, the highest reach 22,000 miles into space.
- Space distances are so vast, you can't even calculate them in miles. That's why scientists use the term "astronomic unit," which equals 93 million miles – the distance from the sun to Earth. That means I'm 9.3 billion miles away from our planet!
- There's another trial ahead - the Oort Cloud. That means two things: first - we're on the outskirts of the Solar System; and second - we'll have to get through a cloud of icy objects orbiting the Sun at a distance of a 100,000 astronomic units!
- We're heading out of the Solar System just one-tenth of a light-year later. By the way, if you were trying to reach this point by car, the trip would take you more than 19 million years.
- In the center of pretty much every galaxy, there’s a supermassive black hole. For example, one is sitting right at the heart of our Milky Way galaxy, about 27,000 light-years away from Earth.
- A black hole is an eerie place where those laws of physics we studied at school stop working. If a massive star runs out of its star fuel, it becomes super-dense and buckles under its own weight, collapsing inward and bringing space-time along.
- I won't go further than the horizon, aka the point of no return. Once an object crosses this invisible line, it can't turn back, even if it's changed its mind.
- Liam says he's ready to start his journey. There he goes, bravely plunging toward the black hole while I'm recording everything that's happening to him.
- Liam just froze, as if a gigantic finger has pressed a pause button, and now, some force is stretching him thinner and thinner!
- It's the infamous spaghettification, which happens in a super-strong non-homogenous gravitational field!
- Liam is in a state of free-fall now, and feels no more stretching, scalding radiation, or gravity. Unfortunately, the connection is lost, and he can't tell me anything about the inside of the black hole.
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