Declassified CIA files have detailed some of the unorthodox methods used to investigate the bombing.
The documents cover everything from UFO sightings to government-backed remote viewing experiments.
Scientists are keen to launch a mission to Venus to investigate mysterious dark streaks in its clouds.
A surveillance plane has been looking in to reports of a 'pinging' sound in the Fury and Hecla Strait.
NASA's Curiosity rover has taken a closer look at an odd-looking meteorite lying on the surface of Mars.
A series of paranormal disturbances at a house in South Lanarkshire have been investigated by the police.
ESA's Rosetta spacecraft has made a significant new discovery within the atmosphere of its new home.
Egyptian authorities have stated that better technology will be needed to investigate the tomb further.
Police in London were left perplexed this week after a man was spotted driving a rather peculiar vehicle.
Founded back in 2011, the controversial department had managed to investigate just ten UFO sightings.
Presidential candidate Hillary Clinton has promised to disclose information about UFOs if she is elected.
A humanoid robot guide called Spencer will be tasked with helping passengers reach the correct terminals.
Newly declassified documents suggest that authorities knew all about the Broad Haven Triangle mystery.
New aerial footage has been released showing an intricate pattern of circles in a field in Russia.
The Vatican is set to rule on the validity of a long history of Virgin Mary sightings in Bosnia.
The CIA has pulled the plug on a project designed to investigate climate-related security threats.
A new study has investigated what causes the planet to inexplicably vibrate at very low frequencies.
Geologists have been investigating a glowing orange hole that opened up on a Chinese mountain.
Having been relegated to a subgenus of Apatosaurus, the iconic Brontosaurus is now making a comeback.
Researchers used volunteers dressed up in monster costumes to investigate how people reported sightings.