To think that possibly at this precise moment on a planet that has yet to be discovered (and pillaged) there is someone else writing down their thoughts on whether or not other civilizations exist makes me a little paranoid. It also makes me yearn... read more
There is almost a 100 percent chance that there is a huge amount of life in the entire universe.
At our current state of knowledge, we can only talk of probabilities, and in all probability there is a great deal of life in the universe beyond our Earth.
Let's talk facts. There are probably an average of 100,000,000 stars in each galaxy. Some galaxies are larger, some smaller. And there are estimated to be several billion galaxies in the universe. In rough figures, we're talking about 1,000,000,000,000,000,000 stars, each of which may be a sun to its own set of planets. More stars exist in multiple systems than as single stars like our sun, so this may be an upper estimate for planetary systems.
A study in the last several years found that complex chemicals that may ride on meteroids will gain in complexity when they strike a planet's surface. While this seems cointerintuitive because we typically think of things being torn apart by such energetic collisions, this implies that the building blocks of life could have been formed by such collisions.
Did the final step require the hand of God, or did the source of the universe already have in place the mechanisms to take complex chemicals all the way to primitive life forms? Or was it all accident? We may never know the answer to this last part, but scientists are still working on it.
Scientists and engineers are also working on spacecraft and equipment to detect extrasolar, Earth-like planets. If free oxygen is detected in the atmosphere of any such worlds, then we have as likely an indicator of life as any. Molecular oxygen does not typically occur in nature without life performing something like photosynthesis. We may be only a few years from having an answer.
by David Livermore 6 years ago
Are you worried about what happens after you die?I have two fears for when I die: I'll basically cease to exist, have no consciousness, etc. Or, that there is an afterlife and I'll learn the meaning of life, which could be devastating if I handled life wrong!
by Beth Perry 7 years ago
If you were to write and/or make a movie about one famous person who would it be?If you had the chance to write and/or make a movie about the life of one famous person, who would it be? And what actor or actress would you pick to portray that person?
by BritInTexas 7 years ago
Do your family ever make you feel guilty about the life path you chose?In 2007, at the age of 31, I left my home in England and moved to Texas, USA, and got married. Since that day, my parents and one sibling have subtly made me feel tremendous guilt for 'leaving' them, and will often ask why...
by Trihorus 3 years ago
Hi Hubbers,I'd like some help with passing the Quality Assessment Process. Will you please give feedback on my Hub Possibility of life beyond earth (must be signed in to view). What can I do to improve? Thanks!Please go through this hub and point out my mistakes. Also tell me the ways to improve my...
by peterxdunn 6 years ago
Does this image prove - beyond all doubt - that God does not exist and that the Bible story...cannot be true?Look very carefully at this picture. It was taken by the Hubble Space Telescope (a true miracle of the modern age). The light from some of the galaxies shown here has been travelling through...
by Bri Timpson 3 years ago
Would you be interested in reading about the life of a young adult growing up in polygamy?I'm writing an article about this subject, but I'm curious to see if people would want to read it. What would you want to know about kids growing up in polygamy? What about adults who live it? What kind of...
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