If you are a fan of Carl Sagan and his knowledge, you may be curious about the wealth he has amassed. Details of his net ...

In 'Extraterrestrial Worlds', Austrian astronomer and engineer Lisa Kaltenegger, founder of the Carl Sagan Institute, details ...

By Jaspreet Bindra In The Demon-Haunted World, Carl Sagan reflected on a time when scientific training was inseparable from ...

How much further can Voyager 1 travel before we lose contact or it runs out of energy? What if we turned the cameras on now?

Here’s how it works. What most people don't know about Sagan, and what has been somewhat obscured by his fame, is the far-reaching impact of his science, which resonates to this day. Sagan was ...

Carl Sagan explains how Eratosthenes used shadows and simple math to prove the Earth isn’t flat—over 2,000 years ago!

Extraordinary claims require extraordinary evidence. That truism, now known as the "Sagan standard" after science communicator Carl Sagan, has been around in some form since David Hume first published ...

Beloved astronomer Carl Sagan made a prescient prediction about a populist "charlatan" that seems to have come true decades ...

“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 ...