How long would it take an alien civilization to explore the whole galaxy using automated probes?
British astronomers from 11 institutions have set up a new network to help search for signs of ET.
UK councillor Simon Parkes has revealed some unusual stories in a recent alien abduction TV documentary.
A continuous message beacon aimed at contacting aliens is being hailed and criticized in equal measure.
Police in Ohio have reported an incident in which a man lost his car following an encounter with aliens.
Survey telescopes set up in Antarctica are being used by Chinese astronomers to look for alien planets.
Evidence has surfaced that suggests the British 'alien big cats' phenomenon is not a recent one.
Hollywood movies involving UFOs and aliens could have a direct effect on the number of real-life reports.
Filmmaker James Fox will award the money to anyone who can prove that some UFOs are alien in origin.
An effort to listen out for intelligent aliens in the direction of stars with planets has drawn a blank.
The possibilities and consequences of such a discovery have been discussed at the World Economic Forum.
The astrobiologist has claimed that fossil diatoms found in a meteorite are proof of alien life.
Exotic alien life could potentially thrive on habitable moons around distant planets, say scientists.
Scientists are optimistic that the first true Earth-like planet will be found in the very near future.
The Russian Prime Minister has been raising eyebrows with some peculiar comments about alien visitors.
How likely is it that we will find an advanced alien civilization within our own Milky Way galaxy ?
Astrophysicist Lucianne Walkowicz believes that there could be something obvious we are missing.
Astronomers have identified an extrasolar planet that is a top contender in the hunt for alien life.
Astronomer Lord Martin Rees believes that we may soon know if there is life elsewhere in the universe.
More than 50 people have camped at Russia's Lake Baikai to search for evidence of alien visitors.