In a French criminal trial, conventional DNA analysis couldn’t distinguish between twin brothers, but emerging scientific methods could help in such cases.

Government officials have said little about Trump’s most recent social media post on the matter. The president cited “tremendous interest” in the files, whatever they might contain. Perhaps the most ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” Richard Feynman’s reflection lingers because it feels personal.

There is a silence in the night sky that has bothered me for as long as I can remember. ” That observation, attributed to ...

When ancient DNA studies began to gain attention, little more than a decade ago, the view took hold among geneticists that ...

According to sources close to the investigation, there are concerns that DNA recovered from Nancy Guthrie's home may not yield a usable profile for comparison.

The mixed DNA sample found at Nancy Guthrie's house is complicating the search for her, after she was taken from her Arizona ...

A viral Obama podcast answer about aliens prompted Trump to accuse him of revealing secrets and promise to release UFO files ...

President Donald Trump says he’s directing the Pentagon and other government agencies to identify and release files related to extraterrestrials and UFOs because of “tremendous interest.” ...

Authorities trying to solve the disappearance of Nancy Guthrie say they might tap DNA genealogy databases, the same step that police took to unravel a decades-old series of murders in California and ...

An investigation initially punctuated by ransom notes and public pleas from family members for Nancy Guthrie’s release has since transitioned to investigators seeking results from DNA evidence ...

Scientists have confirmed that DNA found in meteorites includes all five nucleobases essential for life, strengthening evidence that the chemical building blocks of biology formed in space long before ...