One of the world's leading physicists, Stephen Hawking says aliens do exist but humans should stay away from them.
134970
Aliens do exist but humans should stay away:
18641
Sigourney Weaver believes in extraterrestrials
142623
Mark Emmert urges caution...
99277
William Shatner believes in aliens
153045
Aliens to land on Earth today?
102048
Dookeran must tread carefully
1804
Rafsanjani warns US against any mischief
128368
'No one is safe from the slime':
22173
Mysterious dark matter may lurk by Earth
26479
Exoplanets which venture near their host stars are doomed to premature deaths
108388
Half of Britons believe in aliens
130415
Aliens may not exist after all:
16336
Parliament should not take us back
79554
Radiation would nix sex in space:
89914
World will not end next month-scientist
119546
Dualism could be problematic
159049
Humanity isn't random product of evolution: