Extraterrestrial Rain?

Bacteria may be "born space travellers."
Image: BBC

Dr. Godfrey Louis' investigation of a strange red rain that fell in India in 2001 has raised eyebrows in the scientific community. He found tiny cells present in the rain, but the cells did not hold DNA, a necessary component for life on Earth. The conclusion he came to was that they must be alien in origin. This claim has added fuel to the "Panspermia" theory, the theory that life on Earth was originally brought from a different planet, and Dr. Wickramasinghe says that "bacteria seem to me to be born space travellers." The quest to find life in our solar system has intensified; Nasa is currently working on a submarine to explore the oceans on Jupiter's moon Europa.

--BBC has more information