Watch videos about the life and tragic death of rap icon Tupac Shakur.

Music journalist Kevin Powell addresses the last time he saw Tupac as he reads aloud an excerpt from a letter he wrote to the late rapper on the 20th anniversary of his death.

What would you ask the astronaut who holds the NASA record for living in space? In the premiere of Biography’s new series, in partnership with Reddit, astronaut Scott Kelly takes us inside his historic trip aboard the International Space Station and how space travel has impacted his life.