A lot has changed since the first broadcast in 1991. The show’s commitment to science hasn’t.
The elbowed, spindly appendages of the bigfin squid have long stunned the public. But scientists say there is more to this deep-sea dweller than its ghostly appearance.
June 5 marks the 40th anniversary of the first report on HIV and AIDS. Anthony Fauci looks back on four decades of research.
A look back on the groundbreaking chimpanzee research and humanitarian career of Jane Goodall.
From the first Earth Day in 1970 to today’s youth climate strikes, researchers and activists look back at the decades-long fight for a healthy planet.