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Feature Guest: Doug Welch
Imagine being able to go back centuries to study the great supernovae of the past. Tycho’s nova of 1572 for example. Now we may be able to do the next best thing. Astronomers have discovered a phenomena known as light echoes which allow us to study long ago supernova events from our past and find supernova we never even knew occurred. To help us understand these mysterious light echoes, which can give the illusion of superluminal speeds, Doug Welch joins Justin Trottier at The Star Spot.
Current in Space
The key mechanism for triggering solar flares – potentially harmful events for our civilization – may have been discovered, explains Anuj. Then Tony shares new developments in futuristic skintight shape remembering materials that could revolutionize spacesuits. In an unusual response to the building of a telescope, Celine tells how the Thirty Metre Telescope has been attracting controversy and even opposition. And Dave gives us an update on mysterious organic clouds discovered on Saturn’s moon Titan, the only moon in solar system with an atmosphere.
About our Guest
Doug Welch is Professor of Physics and Astronomy at McMaster University and formerly served as Chair of the department. He received his PhD from the University of Toronto, worked at the Herzberg Institute of Astrophysics’s Dominion Astrophysical Observatory in Victoria, BC. He has been awarded the McNeil Medal of the Royal Society of Canada for the promotion and communication of science and is currently Vice Chair of the Canada-France-Hawaii Telescope Corporation. His research has led him from studies of dark matter to a current focus on supernova light echoes.
How to Listen to the Show
The Star Spot is also broadcast on The Scope at Ryerson. The show airs every Tuesday and Sunday at 6:00PM Eastern Time. Listen live here
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