The video discusses the first photo ever taken of a black hole. The hosts, Lukas and Daniel, explain that a black hole is a region in space with such a strong gravitational pull that nothing, not even light, can escape. They note that the black hole in question, located in the Messier 87 galaxy, is approximately 6.5 million times more massive than the sun and 55 million light years away from Earth.
The hosts discuss how the photo was taken using a network of eight observatories on Earth, which were connected to form a virtual telescope. The photo was taken over a period of five days, but it took two years to analyze the data and produce the final image.
The hosts also highlight the significance of this achievement, noting that it confirms Albert Einstein's theory of general relativity, which predicted the existence of black holes over 100 years ago. They also mention that the photo was made possible by the work of a 29-year-old woman named Kate Bouman, who developed the algorithm used to capture the image.
Finally, the hosts reflect on the significance of this achievement, noting that it demonstrates the incredible advances that humans have made in understanding the universe. They encourage viewers to share their thoughts and suggestions for future videos, and invite them to subscribe to their channel for more content.
Here are the key facts extracted from the text:
1. The first photo of a black hole was shown at a conference in Brussels in April 2019.
2. Black holes are regions in space where the gravitational pull is so strong that nothing, including light, can escape.
3. Black holes are typically formed when a star larger than the sun dies and its mass compacts, creating a strong gravitational field.
4. Albert Einstein predicted the existence of black holes over 100 years ago through his theory of relativity.
5. The first photo of a black hole was taken by a team of scientists using a network of eight observatories around the world.
6. The black hole is located in the center of the Messier 87 galaxy, which is 55 million light years away from Earth.
7. The photo of the black hole was taken over a period of five days, but the data took two years to be analyzed.
8. The black hole is estimated to be 6.5 million times more massive than the sun.
9. The photo of the black hole shows a bright ring of light around a dark center, which is the event horizon of the black hole.
10. The team of scientists used a technique called very long baseline interferometry (VLBI) to capture the image of the black hole.
11. Kate Bouman, a 29-year-old woman with a PhD in Electrical Engineering and Computer Science, helped develop the algorithm used to capture the first image of the black hole.
12. A light year is a measure of distance, equivalent to 9.5 trillion kilometers.
13. The distance from Earth to the black hole is approximately 55 million light years, which is equivalent to 522.5 trillion kilometers.
14. The photo of the black hole is not a real-time image, but rather a snapshot of the black hole as it appeared 55 million years ago.
15. The first primates were developing on Earth 55 million years ago, around the same time that the light from the black hole was emitted.