Proof Deep
Could there be other life in deep outer space?
Do space scientists have proof that there is existence in another galaxy, or do they not know this yet?
Cool answers by the way. I always thought that Venus may have sea creatures, as I heard it is all made of water like our sea
Talk to any scientists who delves into these things and they’ll all respond “define life.”
The more constrained your definition of life is, the less likely there is that it is out there. For instance, if you are defining life as a creature that you could viably mate with and produce offspring, no, there probably isn’t one off this planet. On the other hand, you can’t mate with the majority of critters and plants on this planet, so obviously that definition of life is too constrained.
On the other hand, if you define life as anything that can reproduce itself, that would include certain types of crystals – and most people wouldn’t define that as life. However, there most certainly are things that can reproduce themselves elsewhere .
So, now we’re talking somewhere in between.
For there to be life like us, it would have developed on a solid planet that was big enough to hold its atmosphere, not so close to the Sun as to be destroyed by solar wind, nor so far away as to be unable to sustain liquid water. However, from what we can determine about the likelihood of different planet types across the Universe, there are still billions of places where life might have formed.
Earth like life depends on lots of carbon (in addition to the lighter elements), mild temperatures, and water – all of which may be common elsewhere. However, if you define life to require DNA, then you’ve narrowed down the possibilities to a as yet completely unguessable number of planets.
However, outside of something as general as “its capable of reproducing itself”, we have found no conclusive evidence of life anywhere in our solar system.
Venus is solid with a heavy atmosphere, no liquids. The only liquid water we have found so far (other than on Earth) has been on various moons around the gas giants (Jupiter and Saturn), in particular, kept liquid by seismic/tidal activity and held there by ice.
We have seen evidence that there WAS liquid water on Mars, so it is somewhat more likely that some sort of life might have developed there … than if there hadn’t been liquid water. But again, we haven’t see any signs of life there.
Remember: Finding water only supports that life might have been able to form there, not that it DID form there.
Rudolph The Deep Throat Reindeer
