Donald Yeomans's guest appearances

Donald Yeomans

Space

Yashar Hezaveh

Natalie Batalha

Seth Shostak

Todd Henry

Mike Brown

Jill Tarter

Peter Smith

Douglas Vakoch

Jeff Moore

Chris Impey

Paul Davies

Anthony Aguirre

Joshua Bloom

Carolyn Porco

Amy Mainzer

OwlTail

Near-Earth comets and asteroids have both seeded the early Earth with the building blocks of life and altered the evolutionary process with major extinction events. Recent ground-based and space-based observations of these objects make it less likely that we will go the way of the dinosaurs.California Academy of Sciences, Benjamin Dean Lecture Series held in the Morrison Planetarium    recorded: 5/15/2008

Near-Earth comets and asteroids have both seeded the early Earth with the building blocks of life and altered the evolutionary process with major extinction events. Recent ground-based and space-based observations of these objects make it less likely that we will go the way of the dinosaurs.<br><br>California Academy of Sciences, Benjamin Dean Lecture Series held in the Morrison Planetarium    recorded: 5/15/2008

Donald Yeomans, NASA - 5/15/2008