Seeking alien life in Earth's atmosphere

First thing that came to my mind is that this might be a good thing, as there might possibly be micro-alien invasion ships up there too (as per the following Douglas Adams quote) "At the very moment that Arthur said "I seem to be having tremendous difficulty with my lifestyle," a freak wormhole opened up in the fabric of the space-time continuum and carried his words far far back in time across almost infinite reaches of space to a distant Galaxy where strange and warlike beings were poised on the brink of frightful interstellar battle. The two opposing leaders were meeting for the last time. ... [More]

HA! I had the same thought.

i remember someone from NASA saying something similar about bacteria might be able to live in the upper atmosphere of Jupiter. up in the gas clouds.

£60,000 for a balloon!? Rip off!

This isnt so far fetched an idea. Try looking up into the sky, a team of British scientists have discovered there are 3 billion (on an average summer day) of insects per 0.6 square miles, all flying around at various heights...the highest recorded insect being a termite at 19,000 feet.