There is a lot of evidence that our universe can support foreign life – but it proves difficult.
As a top NASA scientist admits "tiny super-intelligent" aliens may have visited the earth, we discover some of the most mysterious clues for foreign life so far.
Mars Meteorite with Tunnels & # 39; And & quot; Spheres & # 39;
A Martian meteorite that fell to Earth in the Stone Age is believed by some to be proof of foreign life.
The meteorite has tiny carbon-rich balls and tunnels inside. These are the marks that lively microorganisms fail when they eat rocks on earth, according to a 2014 report in the Astrology Journal.
Importantly, some scientists think the markings were pressed in Mars before it left the red planet.
At that time, Dirk Schulze-Makuch, from Washington Sate University, told Space.com: "It still strengthens the case for the past life on Mars, but of course, there is no safeguard."
Mysterious radio bursts
We've sent off dozens of our own signals in place – hoping for a call back.
But we also get a lot of mysterious radio signals that we simply can not explain.
The fast radio bursts (or FRBS) are detected by listening technology, with computer systems traveling through extensive data to place mysterious signals.
Back in September, the Breakthrough List Program found 72 new fragments coming from a Galaxy 3 billion light years off.
Frags are one, bright impulses of radio emissions of extremely distant galaxy that last milliseconds.
But FRB 121102 is the only one ever recorded to export repeated bursts.
The source of FRBs is still a mystery and the behavior of the imiting object is still unknown.
The range of highly magnetized neutron stars and super-massive black holes to signs of advanced civilization.
The icy mystery of Saturn's moon
Earlier this year, scientists managed to produce organic molecules included in deep-sea vents on Enceladus, one of Saturn's moons.
It found that the plumbs of the material contained "all the basic requirements for life as we know it".
The problem is that even though life may be produced on one of Saturn's motto, the icy environment may simply be incompatible.
And there is no way to find out whether life is really luring on Eneladus unless we send a probe to the moon and begin to dig.
The hidden lake on Mars
In July 2018, scientists found a lake underneath a glacier on Mars.
It is the first known "stable" body of water on Mars, and is thought to measure around 12 miles across.
Fluid water on other planets is a major scientific opportunity for NA
So, as water is an essential ingredient for life as we know it.
But the problem is that NASA may not (yet) invest the mysteries of the lake, because it has nearly a mile under the southern polar ice cap.
Scientists have discovered scores of exoplanets – planets outside our solar system – which are described as "Earth-like".
This means they live in a "residence zone" around their son, where it is not too hot or too cold to keep fluid water on the surface.
Spotting the exoplanets is tricky, but actually found out if they contain life is even harder.
Scientists use space telescopes to spot weak traces of the existence of the planets. But they really are often thousands of light years away, which means we just can not investigate them – yet.
So, while we know that there are potential life-carrying planets there, they will remain a mystery for now.
The Fermi Paradox
The Fermi Paradox is not a strong indicator of foreign life – but more of a thought experiment.
It is a well-known contingent of physicist Enrico Fermi.
Fermi suggests that the huge size of the universe – and the billions of sun-like stars in the galaxy, and their planets – makes it highly likely that it is intelligent to live there.
Some of the civilizations may have developed interstellar travel.
But Fermi also noted that it is a difficult lack of evidence for life on other planets.
The chances of aliens being able to reach us are high, but there's no evidence that aliens ever have.
This paradox has baffled scientists for decades.
Back in 2012, astronomers in Copenhagen University found glycolaldehyde – a sugar molecule – in a remote-away system, 400 light years of earth.
Glycolaldehyde is important because it needs to form RNA, a sister of DNA that is essential to life, as we know it.
This particular star system is "Protostellar," which means the central star is still very young.
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What it means is that complicated organic molecules can form in early star systems, even before the planets are formed.
Given the enormity of the universe, it seems likely that life may exist.
But we simply have no hard evidence to prove it.
Do you think we'll ever make contact with foreign life? Let us know in the comments!
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