There is a small bottle containing a red fluid on a shelf in Sheffield University's microbiology laboratory. The liquid looks cloudy and uninteresting. Yet, if one group of scientists is correct, the phial contains the first samples of extraterrestrial life isolated by researchers.

On July 25, 2001 it rained crimson rain over the Kerala district of India. And these rain bursts continued for the next two months. All along the coast it rained crimson, turning local people's clothes pink, burning leaves on trees and falling as scarlet sheets at some points. Scientists found that the rain contained a bacteria-like material that could have been swept to Earth from a passing comet. Basically, it rained aliens.

However farfetched the idea may seem, the possibility of it actually being "alien material" is quite likely. When we use the term alien, we don't necessarily mean alien life form, but rather something not of Earth. Though there is no hard evidence, people can only conjecture on the strange phenomena that have taken place.