Is it likely that life would exist on other planets?

There is no evidence for that to be the case. One day we will know but that will not be under man's rule. The scriptures do not give us details but it does give us what we need to know. Here are some facts we do know as well:

Scientists have calculated that the total energy output from just our sun is enough to sustain some 31 trillion planets like the earth. Or to measure this enormous output another way: If all the sun’s power could be harnessed for just one second, it would provide the United States “with enough energy, at its current usage rate, for the next 9,000,000 years,” says the Space Weather Prediction Center (SWPC) Web site.

The sun’s energy emanates from its core—a nuclear reactor that smashes atoms together and spews out power. The sun is so big and its core so dense that it takes millions of years for the energy produced within the core to well up to the surface. “If the Sun were to stop producing energy today,” says the SWPC Web site, “it would take 50,000,000 years for significant effects to be felt at Earth!”

Now consider this fact: When you raise your eyes on a clear night, you are seeing thousands of stars, each disgorging vast amounts of energy, similar to our sun. And scientists calculate that there are billions upon billions of stars in the universe.

“Raise your eyes high up and see. Who has created these things? It is the One who is bringing forth the army of them even by number, all of whom he calls even by name. Due to the abundance of dynamic energy, he also being vigorous in power, not one of them is missing.”—Isaiah 40:26.

“When I see your heavens, the works of your fingers, the moon and the stars that you have prepared, what is mortal man that you keep him in mind, and the son of earthling man that you take care of him?”—Psalm 8:3, 4.

Abiogenesis happens. It happened on this planet. It might be a very rare event but we have very good evidence that life appeared on this planet 3.5billion years ago. Let us suppose that on a planet or a moon with liquid water, there is a one in a billion chance of life developing. That would be a very very rare event. What you now have to consider is how many planets or moons are there with liquid water? There are at least two in our solar system, the Earth and Europa (one of the moons of Jupiter). Of the 300 billion stars in our galaxy, let us suppose that 100 billion have planets and moons. If each planetary system has one planet or moon with liquid water, that is 100 billion plants or moons with the possibility of life. If life only forms on one in a billion of those, that is 100 planets or moons with life in our galaxy. There are about 300 billion galaxies out there which gives you 30,000 billion possible contenders. Cut your odds to one in 100 billion. That gives one planet in our galaxy, us. But it also gives one planet in every other galaxy.

Life might be a very very rare event but the universe is so big and the numbers so mind-bogglingly huge that the probability of life elsewhere becomes almost a certainty. It is highly unlikely we will ever make contact with other sentient life forms but that doesn't mean we won't find life of some sort elsewhere.

I think it does, even if it is only microbial.

Our Solar System has been shown to be full of bodies made mostly of ice.

Namely the Moons of gas giants, comets and some asteroids.

Life needs water as well as amino acids and other things, and they are there in abundance.

At least two of the gas giants' moons are thought to have bodies of liquid water beneath the ice.

That is how life started on Earth, and the same time has passed for all.

Check out the Drake Equation. Very interesting!

http://en.wikipedia.org/wiki/Drake_equation

I tend to think of it this way ... look up in the Sky at night .... how many stars are out there ? WE are only one of those stars... so WHAT are the possibalities of just one ... just one other planet out there that it will have life on it ... what are the odds? GAZILLIONS... to one

odds are that there is, was, or will be, some form of life on some other planets in the universe ...

Yes. Very likely. Have you seen how many planets remain? We've only searched a very small amount in total.

Yes, it is far more then likely, and yes everyone has the right to their own opinion.

Our technology is hundreds of years away from justifying an opinion.

This one's optimistic. This one went to market.