Findings in the Search for Extra-terrestrial Life

Better Essays
Extraterrestrial life is life originating from elsewhere in the universe. Irrefutable scientific evidence of extraterrestrial life is yet to be found, but a lot of better evidence is found every now and then. Most scientists accept the idea of extraterrestrial life, stating that taking into account that our universe’s size, the number of galaxies, and most importantly the number of earth-like planets, are beyond our imagination. The above shows that if no life is found in our solar system, then that has no proof whatsoever that no extraterrestrial life exists. The universe is vast, way beyond our imagination. The number of galaxies is also beyond our imagination, and we have only begun understanding the number of extra-solar planets in the universe. An extra-solar planet is a planet that revolves around a star. A group of these make up a solar system. Our planet, Earth, is an extra-solar planet, which is why scientists look for extra-solar planets for life, especially ones resembling planet Earth. The first extrasolar planet was discovred in 1995. More than 400 extra-solar planets have been discovered since then, some of which have been put under some serious research because of Earth-like features. But of course, not every extra-solar planet is habitable, which is a common mistake because some people think an extra-solar planet is a planet resembling earth, which is wrong. Another issue while searching for extraterrestrial life is water. On planet earth, every living creature needs water, whether it is directly, or indirectly, just like all living creatures need sunlight whether it is direct or not. Planets with drinkable liquid water have yet to be found, but some have been high in the contenders list. The star Gliese 581, which...

... middle of paper ...

... Something suggests it was an Earth-sourced signal that simply got reflected off a piece of space debris." That is why, despite all the speculation, the true origin of the “Wow! Signal” has yet to be found, and this debate will continue.

So, based on the above, science does not have one stance on the existence of extraterrestrials. Scientists have created several theories, tinkered with others, and have researched for proof. Based on what we know now scientifically, it is not impossible that extraterrestrial life does not exist. We might be alone, and we might not be. Science has yet to agree, or disagree with extraterrestrials existence. What we do know is that humans will keep asking this question for years and years to come, until undeniable proof comes in. And we also realize just from a few examples, how important the topic of extraterrestrials is to humans.