So far, we have no evidence that there is life anywhere else in the universe except here on earth - so the likelihood is 0.
But, knowing that there are billions of stars in thsi galaxy alone, and that there are billions of galaxies, the real likelihood is greater than that.... but it is still small. None of the 200 extra-solar-system planets discovered to date are suitable to sustain life as we understand it... so we need to find a few more candidate-planets, even if they don't have life, before we can begin to say with reasonable certainty that there is a chance of life outside the Earth.
The previous answer is obviously outdated. There are many planets recently found and previously found functional to substain life, if not substaining life already. The moon Titan in our own solar system may even contain life as probes are being sent to evaluate the small ice world around the year 2020. It is claimed to be shooting hot springs once a year on its rotation as the moon actually stretches and ice cracks a bit. This may conclude to water under the surface of the ice, the source of heat is still not of known origin. For more information purchase the box set of the "UNIVERSE" produced by the history channel. If I am exact, the M45 star cluster contains 2 planets that substain an average temperature of 92 degrees and very possibly contain life. It is obsurb to think we are the only planet with intelligent life. While scientists are looking for even molecules and bacteria for evidence, there are greater civilazations to our own with knowledge out of this world, literally. We are predicted ourselves to begin the colonazation of another planet by the year 2100. Parts of our own moon are even being sold off by acres to famous actors and presidents, the Bush family owning land on the moon already, even though they may not live to live on the moon itself their future generations already have a spot. If you don't believe me, Google it. Scientists have discovered a way to make water out of moon dust thus producing the key element to substain life, with a station to produce oxygen and everyday living quarters. The question,"What is the likelyhood of extrterrestial life?" the answer is there is no likely hood. There is extraterrestial life. And we are sure to come into direct contact with many civilizations once we begin our trek into the universe.
Too summarise matts answer is that:
Apparently space (universe) does not end, so people are saying that's it impossible that there is not ONE cell of life in this never ending ness. After all, we are here by chance (big bang) maybe soemone else got lucky....??
I myself do not believe in the Big Bang theory. I understand the universe is expanding but to an extent. I do not believe in the beginning there was space then bang, and everything had spread out. I believe the theory of parallel universes running into each other and mixing. The universe has always been here. There never was a big bang. The stars die and new stars are born. The universe constantly expands to a degree where new matter takes the place of previous matter. There is no one decided point of the center of the universe where matter is expanding from. Thus we have not really but skippied a rock across the lake. The Big Bang is a great theory, because, everything had to come from somewhere, something, so big bang answers those questions to a point. But if that touches the truth of our planets and stars being evolved, where did space come from. The universe or universes is an open ended question. The Big Bang theory does not explain Space, it only explains the evolution of stars and planets. My theory comes from the very little of elements of dust particles and matter that has built up, dissapates and builds up again, it is what Space provides.
The likelihood of other forms of intelligent life existing on other planets is difficult to determine definitively. However, given the vastness of the universe with billions of galaxies and planets, many scientists believe it is probable that other forms of intelligent life could exist elsewhere. Ongoing research in astrobiology and the discovery of exoplanets have fueled interest in the search for extraterrestrial life.
Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe. It seeks to understand the conditions and processes that support life on Earth and explore the possibility of life existing elsewhere in the cosmos. Astrobiologists investigate extreme environments on Earth to better understand the potential for life on other planets.
As there is currently no confirmed evidence of anything existing outside our universe, it is not possible to determine the next closest object to Earth. The concept of distance and objects beyond our universe is purely speculative and theoretical at this point.
The panspermia hypothesis suggests that life may have originated from another planet and spread to Earth through comets or meteorites. While there is evidence to support the idea that microbial life can survive in space, there is currently no direct proof of panspermia. Scientists continue to study the origins of life on Earth and explore the possibility of life existing elsewhere in the universe to further test this hypothesis.
The Andromeda Galaxy is not the largest galaxy in the universe, but it is one of the largest galaxies in our local group. The largest galaxy known is IC 1101, which is over 50 times the size of the Milky Way.
The likelihood of other forms of intelligent life existing on other planets is difficult to determine definitively. However, given the vastness of the universe with billions of galaxies and planets, many scientists believe it is probable that other forms of intelligent life could exist elsewhere. Ongoing research in astrobiology and the discovery of exoplanets have fueled interest in the search for extraterrestrial life.
It is difficult to determine exact probabilities, but the vastness of the universe suggests that the likelihood of life existing elsewhere is high. Factors such as the presence of water and other essential elements increase the possibility of life on other planets. Additionally, ongoing scientific research continues to discover potentially habitable exoplanets.
Galileo is famous for observing and proving his heliocentric model of the universe. After his observation the existing model of the universe was slowly phased out.
The likelihood of a Boltzmann brain forming spontaneously in the universe is extremely low due to the highly improbable conditions required for such a complex structure to arise by chance.
Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe. It seeks to understand the conditions and processes that support life on Earth and explore the possibility of life existing elsewhere in the cosmos. Astrobiologists investigate extreme environments on Earth to better understand the potential for life on other planets.
False. The forces acting on objects on Earth, such as gravity, are the same as those acting elsewhere in the universe. The laws of physics that govern these forces are consistent throughout the universe.
The word "universe" is commonly used to describe the total of all existing things.
Yes universe is endless and it is expanding but every thing that expands has its end once it reaches that end it explodes this might be the cause of the end of universe so there might be a end of universe
'Kayanat' is the "existing reality"It means "Universe" in Arabic and Urdu Language
nature
Universe is the aggregate of all existing matter, energy, and space
Belief in a supreme being is actually a belief in the supernatural, but most people who believe in a supreme being are taught or conditioned as to what it is permissible to believe. Sometimes that conditioning extends to not accepting the possibility that life could exist elsewhere in the universe. More important to the issue of belief in the possibility of intelligent life elsewhere in the universe is that this could call into question the entire basis of religions as we know them.