Our universe is a fascinating and awe-inspiring place.

Did you know that your hair collects dust from space,

but the universe is expanding inside your body,

or that there are diamonds everywhere.

I'm Tom Kerr's, astronomer and author,

and these are just a few of the 101 fascinating topics

explained in my new astronomy book, Diamonds Everywhere, Diamonds Everywhere,

Or inspiring astronomy discoveries available from all good booksellers. This is Scientific American 60 Second Science. I'm Suzanne Bard.

In 2006, a 26 yearyear-old California man named Uriah Courtney was sentenced to life in prison for kidnapping and rape,

despite having an alibi for the time the crimes were committed.

And there were two witnesses.

They saw a lineup in the police station,

and they both identified the same person.

And he was convicted entirely based on those two eyewitness accounts.

Salk Institute for Biological Studies neuroscientist Tom Albright.

He says years later, the California Innocence Project looked into the case. And it turns out that the DNA that was found at the crime scene was not the DNA of

direct Courtney.

After eight years behind bars, Courtney was set free, but his case is not unique.

There are now hundreds of cases in which individuals have been exonerated based on this

post-conviction DNA analysis.

Most of these innocent people were sent to prison

because witnesses misidentified them.

...