Notice: This is an archived and unmaintained page. For current information, please browse

100% Invisible

Presenter: Seth Shostak, SETI Institute
When: February 8, 2016 12PM PST

In astronomy, the rule of thumb was simple: If you can’t see it with a telescope, it’s not real. Seeing is believing. Well, tell that to the astronomers who discovered dark energy, or dark matter … or, more recently, Planet 9. And yet we have evidence that all these things exist (although skepticism about the ninth – or is it tenth? – planet still lingers).

Find out how we know what we know about the latest cosmic discoveries – even if we can’t see them directly. The astronomer who found Planet 9 – and killed Pluto – offers his evidence.

And, a speculative scenario suggests that dark matter helped do away with the dinosaurs.

Plus, the winner of the 2015 Nobel Prize in Physics explains why neutrinos that are zipping through your body right now may hold clues to the origin of the universe.


Michael Brown – Astronomer, California Institute of Technology
Michael Lemonick – science writer and an editor at Scientific American magazine
Lisa Randall – Theoretical physicist, Harvard University, author of Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe
Arthur McDonald – Astrophysicist emeritus, Queen’s University, Kingston, Ontario, and winner of the 2015 Nobel Prize in Physics

Big Picture Science

  • The Big Picture Science radio show and podcast engages the public with astrobiology through lively and intelligent storytelling. Science radio doesn’t have to be dull. The only dry thing about our program is the humor. Big Picture Science takes on big questions by interviewing leading researchers and weaving together their stories of discovery in a clever and off-kilter narrative style.
  • Subscribe to this series

Other Seminars in this Series