Cosmic Perspective

Neil deGrasse Tyson is the same age as NASA, and both have come a long way in 50 years.

Aired: July 30, 2008 (1:48)

What would aliens conclude about intelligent life on our planet if they picked up our broadcast signals?

Aired: July 23, 2008 (1:55)

Some of the most challenging problems in physics are rooted in the most beautiful-to-behold sights.

Aired: July 16, 2008 (1:56)

Neil Tyson describes the uproar in 2004 after NASA announced it had cut funding to repair the Hubble.

Aired: July 9, 2008 (2:03)

Neil deGrasse Tyson muses about how scientists approach uncertainty and bad news.

Aired: July 2, 2008 (2:00)

According to Neil deGrasse Tyson, dark matter and dark energy could just as well be called without a clue A and without a clue B.

Aired: June 25, 2008 (2:02)

Our series host loves puzzles—they're fun and challenging. And to him, the greatest of these puzzles of all are the laws of the universe.

Aired: July 24, 2007 (1:47)

Neil Tyson explains how the study of the smallest particles offers insight into the biggest event that ever was, the birth of the universe.

Aired: July 10, 2007 (1:26)

Do all stars live to the same age? Are some immortal? Learn about aging in the cosmos.

Aired: January 9, 2007 (1:53)

How can light show us the history of the universe?

Aired: November 21, 2006 (1:41)

Find out why we can't live with asteroids and we can't live without 'em.

Aired: October 3, 2006 (1:22)