Aliens Found!

Not exactly the green martian kind but India has found a not-from-this-world species of bacteria in our atmosphere.

Of all the bacteria that was brought back to Earth, 98% of the substances had a similarity with known substances on Earth. Three of the bacteria colonies were completely new species that were foreign to Earth and resistant to ultraviolet radiation. This study does not prove the origin to these extraterrestrial microorganisms. Source.