PBS

Aging Stars

NOVA ScienceNOW's Cosmic Perspective

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

NOVA ScienceNOW: Extinctions

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NOVA scienceNOW producer Joe McMaster asks our series host, Neil deGrasse Tyson, why everyone should know about the Permian extinction.

Asteroid Impacts and Extinction

NOVA ScienceNOW's Cosmic Perspective

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

Dr. Tyson: How's the Universe Today?

NOVA ScienceNOW

Taking questions about the state of the universe from people in the neighborhood.

Manhattanhenge

NOVA ScienceNOW

Perched over 42nd Street, NOVA scienceNOW host Neil deGrasse Tyson is eager to show you his hometown's own version of a Stonehenge magic moment. See it in this video.

The Cosmic Office

NOVA ScienceNOW

Sputnik dolls? Planet-shaped pineapple? Neil deGrasse Tyson, the new host of NOVA scienceNOW, has a stellar collection of space-themed souvenirs. See them in this video.

NOVA ScienceNOW: Killer Asteroids

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In conversation with Apollo astronaut Rusty Schweikert, on a Gravitational Tractor that can deflect killer asteroids.

NOVA's Einstein's Big Idea: E = mc2 Explained

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Ten top physicists describe Einstein's famous equation E = mc2 on NOVA's Einstein's Big Idea.

NOVA ScienceNOW: Limitations of Intelligent Life

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A NOVA scienceNOW discussion with Robert Krulwich on how physical laws constrains the size of life in the universe.

NOVA ScienceNOW: Encountering Antimatter

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On NOVA scienceNOW, commenting on antimatter and what an encounter with an antimatter alien might be like with Robert Krulwich.

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