This story appears in the August 2017 issue of National Geographic magazine. Carl Sagan spent his childhood immersed in Mars. The future scientist, an avid reader of Edgar Rice Burroughs’s ...

Carl Sagan had a bone-chilling prediction about ... and the working class is struggling to access college education. The ...

“I was listening to ‘Cosmos’ by Carl Sagan and reading a book on string theory,” she recalled. “I’ve always been interested in astrophysics and interested in astronomy and astrology ...

“I was listening to ‘Cosmos’ by Carl Sagan and reading a book on string theory,” she recalled. “I’ve always been interested in astrophysics and interested in astronomy and astrology ...

“I was listening to ‘Cosmos’ by Carl Sagan and reading a book on string theory,” she recalled. “I’ve always been interested in astrophysics and interested in astronomy and astrology ...

ONTARIO, Calif. (AP) — After a long day of rehearsing for her upcoming world tour, Katy Perry decided to peruse a few books to help her unwind before bed. “I was listening to ‘Cosmos’ by ...

“I was listening to ‘Cosmos’ by Carl Sagan and reading a book on string theory,” she recalled. “I’ve always been interested in astrophysics and interested in astronomy and astrology ...

Ahead of Spaceflight, Katy Perry Is Reading Carl Sagan and Channeling Her 'Feminine Divine' ONTARIO, Calif. (AP) — After a long day of rehearsing for her upcoming world tour, Katy Perry decided ...