Finding microbes on mars, is life on another planet.
Thats in our reach and so we made that discovery.

Keplars and other telescopes have discovered perfectly habitable exoplanets as far as we could see. They're using 'could' and 'might' which is affirmative that there is life out there. Go through some of these astronomers and hardened researchers, I didn't make up those words just out of the blue, rather having gone through all those exciting reads, video interviews scattered all over the internet, I just tried to sound like them.

Now put down that beer can for a while, and start reading science research papers. Don't even need to be science student or member of scientific research team, all it takes is lil bit of your interest towards monthly science mag and papers. That's it.

Next time you'll pause before you nag someone like 3 years old why moon orbit earth type of questions.

Peace. :D 

http://www.reuters.com/article/2013/06/26/space-planets-idUSL2N0F125U20130626

http://exoplanets.org/

http://news.discovery.com/space/alien-life-exoplanets/star-twinkle-exoplanet-habitable-star-type-130821.htm