3 ms·

Lots of planets, too. Some, with life.

novaRom 4y ago
Or maybe not. If you consider how improbable is the origin of life on the earth then maybe it's not even enough planets in the observable universe to start a life. But the universe is much greater than its observable part.
- antihipocrat 4y ago
  What is the probability of life originating on earth? We know it is anywhere from 0 (originated elsewhere and found its way here) to 1 (originated here and is guaranteed to originate given the conditions). I don't think we have enough data points to determine improbability yet. What is the probability of life originating in the universe? We know it is definitely greater than 0..
  - bil7 4y ago
    you may like to read about the "rare earth" hypothesis and the "fine tuned universe" theory.
    - ericmay 4y ago
      Do you have some books or articles you could suggest?
      - bil7 4y ago
        Call me gen Z but I prefer my knowledge in video form. Can highly recommend PBS Spacetime's coverage of the topics: https://www.youtube.com/channel/UC7_gcs09iThXybpVgjHZ_7g https://www.youtube.com/channel/UC7_gcs09iThXybpVgjHZ_7g
- matheusmoreira 4y ago
  Humanity has found aminoacids in asteroids. Given enough time and energy, it seems likely to me that structures would form and then evolve in complexity.
  - datavirtue 4y ago
    Agreed. I realized recently that planets not only need a goldilocks configuration but likely also need to have a liquid metal core to create a protective magnetic field. It would still occur quite a bit, and some planets with a protective field likely still produce simple life forms.
smolder 4y ago
Since we're looking at objects billions of light years away, we're looking billions of years into the past. In the context of extragalactic life, it's a bit sad to me that even if we somehow spotted it at those insane distances, in the early versions of those galaxies we see, odds are that it'll be gone by now, and we'll likely be gone by the time any lucky photons born in our solar system can reach those places, too. Even so, it's cool to think that the odds of life being out there somewhere in a universe so vast are really quite good, inaccessible as it may be.
- mkultrw1995 4y ago
  Bro everything other then the alive is out there and all the aliens are on earth your just not capable of seeing them
mkultrw1995 4y ago
Everything without life is out there the ones with life are all on earth yo NASA spends all its money on how to lie

Or maybe not. If you consider how improbable is the origin of life on the earth then maybe it's not even enough planets in the observable universe to start a life. But the universe is much greater than its observable part.

antihipocrat 4y ago
What is the probability of life originating on earth? We know it is anywhere from 0 (originated elsewhere and found its way here) to 1 (originated here and is guaranteed to originate given the conditions). I don't think we have enough data points to determine improbability yet. What is the probability of life originating in the universe? We know it is definitely greater than 0..
- bil7 4y ago
  you may like to read about the "rare earth" hypothesis and the "fine tuned universe" theory.
  - ericmay 4y ago
    Do you have some books or articles you could suggest?
    - bil7 4y ago
      Call me gen Z but I prefer my knowledge in video form. Can highly recommend PBS Spacetime's coverage of the topics: https://www.youtube.com/channel/UC7_gcs09iThXybpVgjHZ_7g https://www.youtube.com/channel/UC7_gcs09iThXybpVgjHZ_7g
matheusmoreira 4y ago
Humanity has found aminoacids in asteroids. Given enough time and energy, it seems likely to me that structures would form and then evolve in complexity.
- datavirtue 4y ago
  Agreed. I realized recently that planets not only need a goldilocks configuration but likely also need to have a liquid metal core to create a protective magnetic field. It would still occur quite a bit, and some planets with a protective field likely still produce simple life forms.

smolder 4y ago

Since we're looking at objects billions of light years away, we're looking billions of years into the past. In the context of extragalactic life, it's a bit sad to me that even if we somehow spotted it at those insane distances, in the early versions of those galaxies we see, odds are that it'll be gone by now, and we'll likely be gone by the time any lucky photons born in our solar system can reach those places, too. Even so, it's cool to think that the odds of life being out there somewhere in a universe so vast are really quite good, inaccessible as it may be.

mkultrw1995 4y ago
Bro everything other then the alive is out there and all the aliens are on earth your just not capable of seeing them

mkultrw1995 4y ago

Everything without life is out there the ones with life are all on earth yo NASA spends all its money on how to lie