4 ms·
On the contrary, we are super early! We look up at the night sky and see tons of bright upper main-sequence stars like our Sun, destined to live for billions o
by millstone 6y ago
On the contrary, we are super early!
We look up at the night sky and see tons of bright upper main-sequence stars like our Sun, destined to live for billions of years. But this is a fleeting early period, the first 0.1% of the stelliferous era. Red dwarf stars are both more numerous and long-lived, like 10 trillion years! And red dwarfs seem habitable? [1]
So it's very surprising that we find ourselves orbiting an upper main-sequence star in a universe less than 15 billion years old. By chance the universe ought to be older and our star more common.
1: https://en.wikipedia.org/wiki/Habitability_of_red_dwarf_systems https://en.wikipedia.org/wiki/Habitability_of_red_dwarf_syst...
- raxxorrax 6y agoIt would be interesting to check if M class stars actually can support habitable planets. Could significantly increase the lifespan of planets like earth. The article hints at problems in the process of early planetary creation. Although there was this Chinese sci-fi movie that I actually liked about putting giant boosters on the planet... don't remember the name, but I believe it was on Netflix. Aren't class G stars quite common? Not as common as class M perhaps, but I always though about the sun as being quite "normal".