At 9.02am an explosion ripped into the Alfred P Murrah Federal Building in Oklahoma City. One hundred and sixty-eight people died, including 17 children
Three tests are used to locate fugitive Nazis, an advanced computer facial recognition system is used and an elaborate database search is conducted.
Conspiracy Test runs its own independent experiment on DU testing with blood samples from up to five veterans of the first Gulf War and more recent Iraq War vets.
Meet five people who have had a near-death experience, and find out if they have had a glimpse into the afterlife and how science can comment on this.
Is there compelling scientific evidence of alien abductions? Scientists examine the data while one alleged abductee claims she has extra-terrestrial children.
Hear the recording of the shots fired during the assassination of presidential hopeful Robert F Kennedy. Will it prove that Sirhan Sirhan did not act alone?