The discovery of a toxin that makes pigs sick has helped to solve a decade-spanning mystery about a meteorite that fell from Mars.
When the Lafayette meteorite was found in a drawer at the biology department of Purdue University in Indiana, USA, researchers couldn't remember where it had originated from.
There had been a number of theories floating around surrounding its origin. Some said it was donated to the university by a Black student who came across it while fishing in a pond, but nothing had been confirmed, the Mirror reports.
