NASA reports on a theoretical study which indicates that planet Earth was an early achiever in that percentage of planets that have or will become habitable. Reportedly, 92% of those habitable planets we're looking for "have yet to be born."
The researchers say that future Earths are more likely to appear inside giant galaxy clusters and also in dwarf galaxies, which have yet to use up all their gas for building stars and accompanying planetary systems. By contrast, our Milky Way galaxy has used up much more of the gas available for future star formation.
A big advantage to our civilization arising early in the evolution of the universe is our being able to use powerful telescopes like Hubble to trace our lineage from the big bang through the early evolution of galaxies. The observational evidence for the big bang and cosmic evolution, encoded in light and other electromagnetic radiation, will be all but erased away 1 trillion years from now due to the runaway expansion of space. Any far-future civilizations that might arise will be largely clueless as to how or if the universe began and evolved.
|“Solar systems like ours are the rule in the Universe, rather than the exception.”|
|"Psyche [...] may be the exposed metal core of an early planet, the soul of a celestial body."|
|“He has written a great deal about the risks of first contact.”|
|"Either you succeed on your first try, or everyone dies."|
|"It might be aliens."|
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|“A short cut through spacetime allowing for travel over cosmic scale distances in a short period.”|
|“If you fell asleep in 1945 and woke up in 2018 you would not recognize the world around you.”|
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|“The very fact that apps – like a period tracker or an LED flashlight [app] – share data with Facebook will come as a surprise to many people.”|
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