Extraterrestrial life 
Two possibilities exist: either we are alone in the universe
or we are not. Both are equally terrifying.
Arthur C. Clarke
Bibliography
General
Ancient astronauts
Extrasolar planets
Life on Mars
UFO
General
SETI Institute
SETI
Penn State ETI Center
METI
SETI League
Allen Telescope Array
Carl Sagan (1934-1996)
Extrasolar planets
Extrasolar Planets Encyclopedia
Life on Mars
NASA Mars missions
12 meteorites fell on the Earth from
Mars. One of them was discovered 1984
and only recently (1996) scientists
found traces of primitive life on it.
The meteorite fell on Earth more than
13000 years ago and is called
Allan Hills 84001 (Allan Hills is a
place in the Antarctis where it has
been found). The life form should
be 3000000000 years old and seems to
have been similar to terrestrian
bacteria.
UFO
UFO Evidence
Ken's UFO page
