No, scientists have located many planets with like atmospheres to ours, if we could make life, why can't they? And the reason we haven't traveled there is that it is billions of light years away.
ok. im explaining it as simple as posible. space is big. Billions of galaxies. Milky way make 50 stars a year. stars have 50% of planets. 0.2% planets are livable. 90% of livable planets have life.
There is an infinite amount of galaxies. In 2006 it was determined that the milky way and its neighbors had 8 traditional planets. Now... 8 traditional planets times infinity... And not one other has any other life form? Doubtful.
I'm going to bring this topic back, since it was made before I came here, and I still wanna get my 2 cents in.
There is lots of evidence suggesting life on other planets is very likely:
Life can be supported in scalding, acidic hot pools, in the driest deserts, and in the dark, crushing depths of the ocean. It has even found a niche in the frigid polar regions, in toxic dumps and nuclear power plants. Undersea hydrothermal vents also support entire ecosystems.
Hydrogen and oxygen are the in the top 3 most common elements in the universe. Of the top 3 elements they are the only two to form a compound. That being water.
Adding to the chances, we must consider aspects like Jupiter's moon Europa, which is thought to have a subsurface ocean with an environment similar to the deep oceans of Earth. Venus once had a climate similar to Earth's and vast oceans of water. Recent Mar's photos show water formed canyons, deltas and waterfalls.
There are many habitable zones that we know of!IN case you don't know, habitable zones are the best guess approach to determining possibilities of life. These habitable zones exist as a range from the sun in which water can be supported on a planetary surface. Additional factors normally include a super giant gravity well that in essence protects the habitable zone from comets, asteroids etc.
Due to the limits of technology, the types of planets we can detect are limited (large gravity well Jupiter sized planets). Computer modelling offers the best solution to determining probabilities of habitable zones. Current modelling estimates arrive at a rate of 25-50% of extrasolar planetary systems will have a habitable zone capable of supporting an earth like planet.
Conclusion: I don't know, but it is very very very very unlikely.