Do you believe that there is life on other planets?

Question

When you look in the sky, there are millions of stars. Our Sun represents one solar system. All of the other stars are solar systems too, some much bigger than ours. Is there bound to be life anywhere else?

Answer 1

yes

Answer 2

The probability is very likely that there is some form of life elsewhere in the universe.

Answer 3

Of course. There are so many other planets out there and so many galaxies that there has to be something else that is also alive out there somewhere.

Answer 4

There are something like 10 trillion billion stars in the universe and ours is apparently ordinary.  Even if only one in a million has  intelligent life, that would equal over a hundred thousand species in our galaxy alone.

Answer 5

YES THERE IS

Answer 6

No. In every universe maximum 1 planet can have life on it. Other universes may be empthy or may have life. But not in our universe.

Answer 7

well you tell me....

keep in mind  all of the total number of stars, the number of these that may support habitable planets, and the likelihood that any of these planets would support life.

It is estimated that our Milky Way galaxy contains between two and three hundred billion stars (2-3 x 10^11), and that there are about one hundred billion galaxies (10^11) in the visible universe.

If the average number of stars in other galaxies is similar to ours, then there are 2-3 x 10^22 stars all told.

Using the smaller number we have 2 x 10^22 stars to start with.

there are many inhospitable zones within all galaxies (the planets of stars too close to the centre of a galaxy or to radiating black holes, for instance, are being sterilized by microwaves) and stars in these regions are unlikely to support life-bearing planets, at least, not life as we think of it.

Let’s guess that only one tenth of each galaxy’s stars are clear of these areas, giving us 2 x 10^21 stars in hospitable zones of the universe.

we can guesstimate that some fifty percent of all stars possess planetary systems, so about 1 x 10^21 stars are predicted to have orbiting planets.

many exoplanets likely do not possess the conditions we consider necessary to support life (water, appropriate temperature ranges, appropriate elements and minerals, energy sources such as sunlight or planetary heat, etc.). A reasonable guess might be that of those possessing planetary systems, only one star in ten will hold a planet that is habitable. This gives us 10^20 stars or 10^20 habitable planets.

we do not know if life will always arise on habitable planets.  If, as is turning out to be likely, the molecules from which life originates can form in space-ice, then probably all of the universe’s planets will have been inoculated by now. How much of this material then goes on to create life can only be a guess. Presumably, if the right conditions exist, eventually all will; but, to err on the conservative side, let us say that only one in a hundred habitable planets becomes a host to life.

Thus about 10^18 (1,000,000,000,000,000,000 or one quintillion) life-bearing planets possibly exist in the visible universe. Of these, about 10^7, or ten million, could be in our own galaxy.

so basically...if you say there probably ISNT life, you are being the one who is far fetched

Answer 8

no