This week, discover the Sahara’s greener past, explore a mysterious cosmological force, marvel at a new concept for space ...

One thing geology teaches us about is the existence of another monumental event in the history of Earth, 2.4 billion years ...

One of the method's applications is to give a more complete sense of human ancestry, says Gideon Bradburd, U-M professor of ...

Evanston’s Reparations Committee discussed a potential partnership reconstructing African ancestry with DNA testing Thursday.