TV
While studying prisoners in 1980, psychologist Dr. Robert Hare developed the Psychopathy Checklist - a list that evaluates people based on twenty basic traits, including lying and lack of remorse.
To prove that Dennis Rader is BTK - and not the "normal guy" he seems to be - the police have to get creative with DNA testing.
When the Green River Killer is convicted of murder, the FBI brings in Dr. Mary Ellen O'Toole, leading expert in psychopathy, to get the killer to confess to 44 unsolved homicides.
In 1897, bone fragments are found at a factory belonging to the husband of a missing woman, and George Dorsey, the first forensic anthropologist in America, gets called in to consult.
Many of the technologies first fictionalized in Star Trek are now a reality. Using x-rays, scans, and a mixture of cells, scientists can actually print human tissue and organs.
Our film crew recreates the glamorous life of socialite Evalyn Walsh McLean. The one-time owner of the hope Diamond was rumored to occasionally display the Hope Diamond on the neck of her Great Dane.
The cheetah may be the fastest animal around, but its speed comes with a price; if it runs for too long and gets too hot, its heart and brain will cook.
Curator Roger Launius recalls his favorite memory of space flight.
After millions of years of evolution, the world's fastest predators only need a fraction of a second to kill.
NASA pilot Joe Edwards details the challenges of living aboard a spacecraft.
Find out what happens when America votes for a new temporary setting for the Hope Diamond.
Oh, the sights this telescope has seen!
How much do you know about the most famous diamond in the world? How much is it worth? Where does it live? How big is it?
The first time fingerprints were ever used as evidence in a murder investigation, the detectives used the same system of classification that we use today.
Witness the Hope Diamond's epic journey, spanning eons, crossing three continents, and passing from kings to thieves to millionaires and into the halls of the Smithsonian.
An animated look at the history of the Hope Diamond.
At the Federal Bureau of Alcohol, Tobacco, Firearms and Explosives, the fire research lab is committed to cracking arson cases using carefully planned test fires and cutting edge technology.
In 2007, a house fire kills a middle aged couple, but leaves their teenage son nearly unscathed.
Smithsonian scientists use cutting-edge technology to extract atoms from the surface of the Hope Diamond in hopes of unraveling its unique DNA.
Crime scene investigators working on the Night Stalker case try all types of fine, dry powders to reveal the killer's latent fingerprints in his abandoned car.