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Incredible. If each of those galaxies has on average a few hundred billion stars (our is estimated to have between 100b-400b), and each of those little dots is
by cbm-vic-20 4y ago
Incredible. If each of those galaxies has on average a few hundred billion stars (our is estimated to have between 100b-400b), and each of those little dots is an entire galaxy, well, that's a lot of stars in this image.
- MrDunham 4y agoPeople use the term mind-blowing loosely but it really fits here. That’s an utterly astounding, incomprehensible number of stars. And this image is “roughly the size of a grain of sand held at arms length” of the night sky.
- floatrock 4y agoa brief peek into infinity
- 314 4y agoNot really - there is a fairly definite ending about 13.4b light years into the image.
- losvedir 4y agoI think you're referring to the age of the universe here? But due to inflation, although the universe is 13 billion years old, the observable universe is quite a bit bigger than that (i.e. we can see stars much further than 13 billion light years away).
- 314 4y agoI was thinking of the age - good point.
- delta_p_delta_x 4y ago> And this image is “roughly the size of a grain of sand held at arms length” of the night sky. For a more specific measurement: NASA says 2.4 arcminutes across[0]. [0]: https://webbtelescope.org/contents/media/images/2022/038/01G7JGTH21B5GN9VCYAHBXKSD1#:%7E:text=Image%20is%20about%202.4%20arcmin%20across:~:text=Image%20is%20about%202.4%20arcmin%20across https://webbtelescope.org/contents/media/images/2022/038/01G...
- justinator 4y agoLots of planets, too. Some, with life.
- novaRom 4y agoOr 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 agoWhat 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 agoyou may like to read about the "rare earth" hypothesis and the "fine tuned universe" theory.
- ericmay 4y agoDo you have some books or articles you could suggest?
- bil7 4y agoCall 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 agoHumanity has found aminoacids in asteroids. Given enough time and energy, it seems likely to me that structures would form and then evolve in complexity.