Hey, this might be a dumb question, but does anybody know the length of time of the window in which the earth is the perfect distance from the sun in order to be able to sustain life?
I remember leaning it in school, but forget - are we moving closer to the sun because of gravitational pull, or are we getting blasted away due to star explosion..? like, eventually earth will be too close or too far away to sustain the right levels of gas, oxygen etc. For life to exist and our atmosphere to sustain us... how much longer do we have (this is hypothetically if climate change and global warming werent going to significantly effect us)? I realise this could be on the timeline of billions of years.
And, are space scientists looking at the possibility that climate change potentially speeding up this process or affecting the atmosphere to an unstable level in the scope of the next few generations?
Thank you.
Submitted September 12, 2020 at 09:28PM by thatbishcarolbaskin https://ift.tt/3kayOMu
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