4 ms·
Do we know of anything that has that type of lifespan outside of celestial bodies like planets?
by fumar 5y ago
Do we know of anything that has that type of lifespan outside of celestial bodies like planets?
- Beltalowda 5y agoBoth the earth and sun are about ~4.5 billion years old. 7 billion is completely off the charts.
- vimacs2 5y agoM type dwarfs can easily have a lifespan in the main sequence spanning many trillions of years with even their red giant phases estimated to outlasting even the main sequence of stars of our size. A steller mass black hole's estimated lifespan would of course make even these seem like an eyeblink by comparison.