Star Trek

http://www.telegraph.co.uk/science/space/9230801/Astronomers-find-new-planet-capable-of-supporting-life.html

Only 22 light years away

The temperature range may be able to sustain life, but how would you live on a gas giant planet?  Would there be any land on which to build, or would you just orbit in its atmosphere?

It's not a gas giant - "Gliese 667Cc is a solid planet with roughly four and a half times the mass of Earth".

Next thing you know we're going to send a signal there, then the aliens will drop warships in our oceans.

There always looking for an earth type planet in the goldilocks zone around a star.  Theres a better chance with a gas giant.  Every gas giant planet in our system has at least a dozen moons.   If Saturn was in the orbit Mars is in, would Titan be habitable?  And since gas giants seem to have many moons, 1 Jupiter is worth more than a couple of earth sized rocks in the goldilocks zone.

These are good points, Vicsage.  We haven't even colonized our own solar system, yet.  But, it is helpful to prepare for various contingencies.

One such place to look in the Universe are areas that have roughly the same composition of gases on Earth floating freely in space.

I was thinking about this the other day after researching UV radiation and how the photons interact with gas particles.

Basically UV Radition or photons within a certain frequency range will interact with gas particles thus creating different results.

If we were to look for gaseous areas in the Universe that are comprised of the same gas compositions that comprise Earths atmosphere and a sun similar to our Sun is present that life could theoretically said to exist in the area.

When we discover such a location in space where the gases are relatively the same as on Earth there could be the possibility of the first habitable Earth like planet hiding somewhere within the same gas cloud.

After all life exists on Earth because of the interaction of the Sun and the gases of the Earths atmosphere. The same interaction will occure throughout the Universe as well.