Are There Aliens?
by Are we alone in the universe? Maybe, but chances are, there are some sort of extraterrestrial life form. We would have no idea how it works, because it would be completely different from earth life, but it would, in a way be alive.
Many think that there are no such things as extraterrestrial life forms, but there is a very high chance that life will exist somewhere other than earth. Some people are very narrow-minded. I once wrote a similar article, but I got many responses that scientists have found no life on Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, their moons, our moon, or any asteroid, but actually, scientists might believe one of Saturn’s moons might have some basic bacterial plants and animals due to the volcanic activity. But I’m not talking about our Star System. I am talking about other Star Systems: it’s a big galaxy after all.
If you are one of those people who think there is no other life in the galaxy just because we haven’t found any yet, I have something to ask you. There are Trillions, Billions, Quadrillions of Star Systems out there, and only ONE has life on it? If your answer is yes, then that is about the equivalent of painting a painting several grains of sand, tossing it in the dessert, letting the wind shift it around a little, coming back years later to a random spot, grabbing a handful, looking through it, not finding a painted grain, and saying that you never painted any grains of sand.
Impressed? You shouldn’t be. The chances that a planet will have the correct conditions to support life will be really slim, or at least it happening the same way it does on Earth. Actually, what you would require for life isn’t water that is just the case for Earth. What really is needed is some sort of liquid. This fluid could be liquid methane. That exists on Saturn’s moon, Titan. Liquid allows chemical reactions to happen, which would happen to be why chemists are always working with liquids, not solids. Because they put something into a liquid to make a soluble, allowing chemical reactions to occur. It is the same for life, so who knows? You could have a life-form that can survive in temperatures at lower than -100 degrees due to the fact they are composed of something that is liquid at that temperature!
You might also have something vice-versa. You might have a fiery monster composed of magma because it is close to it’s local star system, although the viscosity is too high, so don’t expect that.
But going by the Earth definition of life-Something that at some point must die, must eat, composed of water, reproduces, grows, is composed of cells, and is able to respond to a stimulus, the chances are still slim. But when you have a lot of planets, slim if very high. Scientists predict that in the galaxy, there will about ten planets supporting life. They calculated this by figuring out the size and age of a star, figured out the star’s local planet’s composition and age, figured out how many average planets per star, figured out the chances of different compositions, figured out the chances of a planet being far enough from a local star to sustain life, the chances that the planet will somehow obtain water, and the chances that the planet will have the correct chemicals to sustain life.
Still, don’t expect an alien invasion (I mean the kind from other planets, not the kind form other countries,) because the life there will probably not be too much more advanced then we are (although there is actually a slight chance that the alien abduction stories are true,) so they can’t come here using a warp-generator attached to the photon engines of their star-cruisers.
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