Wednesday, 1 October 2014

How Many Habitable Planets Are Their In Our Solar System?

Welcome back my fellow learners, today we learn that there could be hope for our future generations once we have exhausted Mother Earth natural resources.

For people that are not familiar with the Drake equation, this method is used to predict how many civilizations could exist in the known universe today.

Unfortunately, the Drake equation doesn't actually give us a definitive answer; it just states what could be possible should we get all the factors right. And while it is fun to imagine that we may eventually locate a planet that is populated with individuals comprised of putty instead of carbon, it's highly unlikely. Instead, we need to define the parameters on Earth to see which other planet is the same.

The requirements are quite straightforward. First, we need water. Water dissolves and carries chemicals, causing crucial metabolic results. We need also energy to create and keep life, so light or chemical energy have to be found. Nutrients are needed to build and help sustain life. A planet that has a water cycle, a breathable atmosphere or volcanic activity will circulate and replenish life. So it would seem the chances are minute that we'll locate another planet which supports life in our solar system. These are after all pretty specific requirements.

However, I find our arrogance and ignorance astounding, to think that in a galaxy as vast as we know it, does not contain any life what so ever. Who is to say that the life found present on other planets has to be the same as ours? And there are parts of our galaxy which are as yet to be discovered, and then there is the continued rumours of UFO sightings, granted many of which are fake, but rumours and legends always have a grain of truth in them somewhere.

My personal opinion is that there is life out there, just not as we envisage it. And hopefully should they ever decide to introduce themselves, we as a human race don't do what we always do, shoot first and ask questions later.

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