Life outside of planet Earth is still a mystery. There is no clear evidence of life beyond planet Earth. Although there are many planets in this universe.
Even just around the Earth there are seven other planets. However, why is there still no evidence of other life forms beyond Earth?
This has been a great question for a long time. Do humans, animals and plants really only exist on this Earth? see the explanation of the experts.
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Scientists say about life outside the planet Earth
Planets are many celestial bodies. Hundreds or even thousands of planets have been detected so far.
There may also be trillions of planets in the Solar System that scientists and astronomers have yet to detect. However, so far there is still no evidence that there is life on these planets.
Josh Calcino and Jack Clark, two astronomers from the University of South Queensland, wrote in The Conversation that astronomers like them are looking for “Earth-like” planets.
However, such a planet is simply nowhere to be found. There are all kinds of obstacles and obstacles that researchers face.
Read also: Asteroid sample Ryugu reveals potential life on other planets?
Possible Earth-like planet
While actually finding Earth-like planets isn’t easy, astronomers still continue to do so. Josh Calcino and Jake Clark add that extraterrestrial life must require the right conditions.
Most likely if a planet like Earth existed, it would likely be far beyond the Solar System. These conditions will make it difficult for astronomers to study the planet.
So, the possibility that there is life on other planets is still very open considering that the universe is really that big and vast.
Furthermore, humans until now do not yet have sufficient technology to study life outside the planet Earth.
What are the characteristics of a planet suitable for life?
In their statement, Josh and Jake also provide important clues as to what makes a planet vital and capable of hosting life like Earth.
The important clue they both convey is liquid water. Most of the search for life focuses on the search for water because it is a very important element on Earth.
Living cells are mostly made up of water. There are also many chemical reactions that occur in the body’s metabolism that can only occur in the presence of water.
The components that make up water, hydrogen and oxygen are in fact the most abundant elements in the Milky Way galaxy. This means that there is a lot of water in this galaxy.
However, living things need water in liquid form. Scientists have found permanent liquid water on Mars, the craters of Mercury, and the moons of Jupiter and Saturn.
Finding planets in a star’s habitable zone can help detect life beyond planet Earth. There’s just no technology that can do that. (R10 / HR-Online)
