do planet earth look rich in life with observed from space?

Question

imagine if u were looking at earth like the moon except 100 times bigger.

Answer 1

Evidence of life on earth:
Visual:
1. The most visible would be lights from metropolitan areas at night. Can be seen from hundreds to thousands of miles.
2. As pointed out, the green regions, especially those which change with the seasons, would be a fair indicator which could be seen from thousands of miles. Green is not a common color for non-living surface features on planets we have seen.
3. So far, the largest visible artifact that I can determine is an area of rain forest clearing in western Brazil. Without magnification, it can be seen as clearly artificial from 1400 miles. With telescopes, of course, all of these can be seen from much farther away. Maybe as far as the moon.

Spectrographic:
4. Our atmosphere is about 21% oxygen. Oxygen is a very active element. Normally there wouldn't be so much of it unless there were organisms (plants) making it. But there are also about 6 parts per million of methane. This would be very unlikely in such an oxygen rich atmosphere unless some process was constantly replenishing it. That would most likely be life. In fact, it is due to waste gases of certain bacteria and animals. Yep, marsh gas and flatulence. These gases could be determined by spectrometers from outside of our solar system.

EMR:
But BY FAR the most obvious sign of life here is our radio noise. We are a small, cool planet that is brighter in the radio spectrum than the sun is! Only intelligent life could cause that and that could be determined from light years away. From however far away one could tell it was coming from a non-stellar source.

Answer 2

If one were using the right observing equipment, signs of life would be unmistakable. With just the naked eye, they would merely be visible. Much of the land area just looks brownish with green patches, from the photos I've seen.

Answer 3

The mathematical probabilities of there being existence someplace else are quite severe. we've not discovered any yet. it is likewise attainable that existence on earth grew to become into consequently of 'panspermia', the place micro organism from someplace else grew to become into deposited right here by utilising an asteroid collision. the different sorts of existence accessible, could desire to there be any, want no longer be greater stepped forward than we are. it must be yet why might we evaluate it a foregone end. it ought to easily be blobs of goo. in case you delete the god concept out of your of course-lively ideas, maximum issues then become lots clearer. frequently, maximum questions like this autumn into place once you get rid of any imaginary acquaintances. this is amazingly okay to no longer know all the solutions to all the questions yet to insert 'God did it' is a folly of the utmost order. study 'Cosmos; by utilising Carl Sagan. study 'the quick answer to pretty much each thing' by utilising bill Bryson. study stuff. sell off faith - it is not stable for you. forget approximately related to the Stonehenge and Easter Island references above. all of us know precisely who did them and whilst. No secret.

Answer 4

Hi. Some areas would be greener in different seasons.

Answer 5

There is some evidence of life from that perspective, however you have to know what to look for.

Answer 6

at night youd see the man made lights of cities.