Astronomy Update

From explosive supernovas to blue moons in May to the announcement of an Earth-like extrasolar planet, our resident astronomy experts give us the lowdown on what's up high.

Guests

• Mal Cameron, education specialist and coordinator of the NASA Educator Resource Center at the Christa McAuliffe Planetarium
• John Gianforte, amateur astronomer, astronomy instructor for the Granite State College, co-founder of the Astronomical Society of Northern New England and monthly astronomy columnist for Foster's Daily Democrat