Edward M. Sion is a Professor of Astronomy and Astrophysics at Villanova University. He received a B.A. in Astronomy from the University of Kansas in 1968, an M.A. in Astronomy from the University of Kansas in 1969, and a PhD in Astronomy from the University of Pennsylvania in 1975. His primary research interests include the formation and evolution of white dwarf stars, the physics and evolution of cataclysmic variable stars, and theoretical studies of accretion physics.
A conversation with the astronomer and astrophysicist at Villanova University.
If asteroids or supernovas don’t kill Earth, our planet will die when the Sun swells up and vaporizes it. By that time, Ed Sion hopes we’ll have long since packed up and left.
A nearby star system may “go supernova” in 10 million years—far sooner than scientists once predicted.
Fortunately, the technology to intercept and destroy renegade space matter is no longer a Hollywood myth.