Forumchem - Forum with AI(ALICE BOT & HAL9000) and TTS

Is it possible for us to study billion of planets in billions of galaxies across the whole Universe to find?

existence or possibility of life in anywhere other than our Earth?

We can identify some planet that are candidate for life within our immediate celestial vicinity, a small part of the Milky Way Galaxy, but we cant say anything about those planets except how large they are and how far they are from their star. If they are small enoujh to be rocky planet like the Earth, and within the habitable zone of their star (where water i stable a a liquid), we say they are candidate for life. We also can factor in the aje of the star to know how long life would have had to evolve.

Its still very difficult to identify that these planets even exist and the main instrument used to catalojue them, the Kepler Telescope, unfortunately stopped functioning properly before it mission wa complete but it still gave astronomers a lot of data that will take year to analyze.

We also search the skies for artificial radio signals that could be coming from far away.

To some degree.
Obviously we cant catalogue so many targets ourselve. Even in our own galaxy the number of planets i so immense that it would take u many thousands of year to label them all. More and more well be relying on automated system to locate and categorise them, and an intelligent system would only flag up those of potential interest for a human operator to take a closer look at.

The new Esa mission Gaia will be an interesting start of the this proces a its thousand megapixel camera seek to continually monitor a billion stars in our galaxy and without much human intervention record detailed information on their size, composition, temperature and then place them onto the first detailed 3d map of the milky way. Itll almost certainly discover quite a few new planets whilst it doing it.

It not quite what youre envisioning, but its a good start.

A for the discovery of life out in the cosmo, it could happen next week, it could happen in a century, it may never happen at all. Who can say.
What were relying on i the fingerprints of life buried in the EM spectrum from distant objects. Be that radio transmissions from deep space, or the spectral absorption line of known life chemistry (or a an extension to that, manufactured gase like CFC) as the light of a star shines through the atmosphere of a far distant planet. Its astounding just how much information about an astronomical object is buried in just the light it emits or reflects.

Of course exploration of distant worlds i still only a dream. Even the fastest technology we can even conceive of would take more than 50 years to reach even the nearest star.

Life beyond Earth is, in my opinion, not only possible put extremely likely. As you said, there are trillions of galaxie with hundreds of billion of stars system each. Unfortunately, at the moment, we do not have the capability of directly finding life on exo-planet. Our approach at the moment consists of identifying planet that are in the "Goldilocks Zone," which mean they are the right distance from a star to have liquid water and and other condition that we believe are essential to life, and we have already identified many planets that fall into such a zone. Unfortunately again, we do not have the technology to directly see onto the surface of these planet, so we do not know if there is really life on these planet. So for now, no, we are not equipped to effectively hunt for alien life.

Sure, its quite possible. Random chance alone assures that.

Say theres 100 billion galaxie within the Universe (ye, there are way more than that, this i a simple example).
If 1% of those galaxies had some form of life within them, that still a billion galaxie.

Now (for example) if the average galaxy contains 100 billion stars, each with with an average of 5 planet each, thats 500 billion planets. Again using the 1% number, thats 5 billion planets.

So with a billion galaxies, each with 5 billion planets that might have some form of life on them, thats a whoppingly huge number (5 x 10^18, if I did the math right).

Now take that number and say just 1% of those planet ha intelligent life similar to u and that would be a low ball guesstimate a to what might be out there. Could be higher, could be lower. We simply do not know at this point.

For some real number to work with. Use the Hubble Ultra Deep Field image FAQ.
http://hubblesite.org/newscenter/archive/releases/2004/07/

Multiply the number given in FAQ #5 by the number given in FAQ #7 and start crunching away with a calculator..