The text is a transcript of a video that covers various topics related to astronomy and space exploration. A possible concise summary is:
The video discusses the following topics:
- The possible destruction of the pillars of creation by a supernova
- The historical observations of supernovae by ancient astronomers
- The naming of the space shuttle Enterprise after Star Trek
- The discovery of an exoplanet around Proxima Centauri and a project to send probes there
- The strange dimming of the star KIC 8462852 and the possible explanations
- The first commercial filmed in space and a failed attempt to launch a giant billboard into orbit
- The prank played on the Apollo 12 astronauts by the backup crew
Here are the key facts extracted from the text:
1. The Milky Way galaxy is part of a large group of galaxies known as the local group.
2. In a few billion years, the larger members of the local group will collide and form a much larger galaxy nicknamed milk dromeda.
3. In about 100 billion years, the expansion of the universe will cause all other galaxies to vanish beyond the cosmic light horizon, making milk dromeda appear isolated in space.
4. In 1054 CE, a star went supernova in the Crab Nebula and was observed by ancient astronomers from different cultures.
5. The brightest supernova in recorded history was observed in 1006 CE and was bright enough to cast shadows on the ground and allow people to see in the dark.
6. In 1974, NASA began construction of the first space shuttle orbiter, which was later named Enterprise after receiving hundreds of thousands of letters from Star Trek fans.
7. In 1993, a company planned to launch a giant billboard into space, but faced immense opposition from the public and the scientific community and eventually abandoned the project.
8. In 2016, astronomers discovered an exoplanet orbiting Proxima Centauri, the closest star to the Sun, which could be potentially habitable.
9. A project known as breakthrough starshot is aiming to send a fleet of tiny automated probes that will travel at 20% the speed of light and reach Proxima Centauri in only 20 years time.
10. In 2009, NASA launched the Kepler spacecraft, which found thousands of exoplanets using a method that monitors the luminosity of stars.
11. Kepler also found a star known as KIC 8462852, which exhibited irregular and asymmetrical dimming patterns that could not be explained by any known natural phenomenon.
12. Some people speculated that the dimming of KIC 8462852 could be caused by an alien mega-structure, but this is highly unlikely.
I hope this helps. 😊