Why is it highly improbable that we are the only evolved species in the Universe?

When you talk about extraterrestrial life, two unanswered questions are always there. Are we alone in the universe? Are there other life forms in the universe? And the answer to both will terrify you. The truth is, the universe is huge. And Earth is no less than a speck of dust on the wide canvas that is the universe. When you talk about alien life you will realize that there are two major groups- ones who believe in extraterrestrial like and the others who believe we are on your own. 

Decades have passed in this debate. But it was not until a few years ago that some controversial theories have surfaced. Some of which are nothing more than just a hoax. But others stem from a solid foundation. Who knows they might be true!

Here are some reasons which say that there might be life outside:

  • New planets– As mentioned earlier, Earth our entire solar system is minute in comparison to the mighty universe. And lately, humans have discovered some distant planets which offer similar conditions like the earth. Keep in mind that we are talking about life forms that are more or less similar to those found on earth.

    This implies that they offer similar conditions like earth. Similar rocky surface, similar organic environment, and maybe even water.

    Scientists at NASA have achieved some success in locating planets that are no less than earth’s twin. But we are yet to find if they possess life on their surface. Why knows, they might!
  • Evidence on Mars

    Evidence on mars

    Mars, The Red Planet is believed to have supported life long before we came along. But how do we know that? Soil from Mars was tested and it showed some chemical signs which indicate that there can be, or could have been life on Mars. 

    But unfortunately, the test was a false positive. Still, we haven’t lost hope! Constant studies are being conducted to uncover the secrets of Mars. Many believe that there is water on Mars, so why not life forms? Or maybe there were and they just perished before we even opened our eyes.

  • Appropriate environment– In many ways humans are a delicate species. We need a controlled environment to survive and so do other species on earth. If we are on the lookout for similar life forms we should consider something called the ‘Goldilocks Zone’. 

    If you consider all the planets in the solar system, you will realize that Mercury and Venus are way too close to the sun and they are extremely hot. On the other hand, if you consider all planets beyond Mars you will realize that they are way too far from the sun. And hence too cold. As a result, neither group can support life. Earth is the only planet that has life because it lies in the ‘Goldilocks Zone’- never too hot, never too cold. Similarly, many planets in the universe are in the Goldilocks zone of their respective stars. It indicates that they too can have life, just like us! 

    Infrared Signals

  • Infrared Signals– Jupiter is the largest planet on the solar system and has a bunch of moons. One of Jupiter’s moons is Europa. And it is believed that Europa possesses alien bacteria frozen on its surface. They emit strange infrared waves that are captured by scientists at NASA. There is no rational explanation of this phenomenon. But if Europa does have bacteria, there may be other evolved life forms there as well. Maybe we have just not found it yet.

  • Alien sighting– There have been incidences where people have said that they meet aliens and were abducted by them. Some of these are just stupid stunts to attract attention but there have been some genuine sightings. Even the scientist believe in them. 

    alien sighting

    But for normal people, it is tough to differentiate the fake from the real. UFO sighting, spaceships, and even aliens. Who knows they might be even walking amongst us?

These are some simple signs which prove that there can be life on other planets. We are not alone in the entire universe. We just have to keep looking!

Here are more signs which indicate that evolved life forms are out there:

Exoplanets NASA

Livescience 

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