Methuselah and the TOI-561 System: What Do the Oldest Exoplanets Discovered Reveal?
The average human lifespan is about 80 years. This seems like a long time, but compared to the age of our home planet, it’s like a grain of sand in a vast desert. According to modern estimates, the age of the Earth is about 4.54 billion years. This data is based on radioisotope dating of special meteorites, the so-called chondrites, formed before the formation of the planets. The age of our Sun is slightly older - our wonderful star is about 4.603 billion years old.
However, the planetary system of our star is far from the oldest in comparison with the oldest exoplanets discovered. In this video, we travel to the oldest exoplanets discovered, which existed long before the solar system began to form.
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Music:
Signal To Noise by Scott Buckley
Cirrus by Scott Buckley
The Long Way Home by Scott Buckley
0:00 Intro. Age of the Sun and Earth
1:25 Star TOI-561 and its planetary system
2:33 Super-Earth TOI-561 b
4:41 Mini-Neptune TOI-561 c
5:29 Oceanic worlds TOI-561 d and e
6:28 First discovered planets with circumbinary orbits
7:02 Discovery of the pulsar PSR B1620-26 and its satellites
7:28 The oldest discovered world. The giant planet Methuselah
8:00 Formation of the planet and its location
8:54 Clusters of stars. Open and globular clusters
10:12 Ancient globular cluster Messier 4
11:10 How did the planet Methuselah end up where it is now?
13:03 Conclusion. Subscribe to the channel!