The astronomy and space exploration podcast
Did a Supernova Cause a Mass Extinction?, with Brian Fields
By now we are all familiar with the theory that an asteroid brought to an end the age of the dinosaurs, a period of domination that had lasted 167 million years. But asteroids are not the only harbingers of doom that lurk in the darkness of space. Today we’re joined here at The Star Spot by Brian Fields, whose research team has found evidence linking supernovae events in deep space to mass extinction events in deep time.
The 18411Milky Way's First Fast Radio Burst, with Sandro Mereghetti
Fast radio bursts are a new mystery in astronomy. These highly energetic events of unknown origin were first discovered in 2007 out in deep space. Now a team is reporting the first fast radio burst to emanate from our own Milky Way Galaxy. Today we’re joined here at The Star Spot by Sandro Mereghetti, whose team is on the hunt for the source of this unusual phenomenon.
COVID-19 Meets the NASA Space Apps Challenge, with James Slifierz
The NASA Space Apps Challenge is a feverish annual hackathon engaging teams of coders, scientists and storytellers around the world. Each year thousands of participants in over 75 countries compete to solve real-world problems in Earth and in space. As the Challenge celebrates its 10 year anniversary it faces one of the most demanding challenges of our generation: COVID-19.
Planet Nine or Black Hole One, with Jakub Scholtz
We’ve long believed that membership in the solar system’s planetary family was limited to those eight planets we learned about in grade school. But then astronomers began to raise the possibility of a new super-Earth-sized planet, five to ten times the mass of Earth, orbiting far off in the outer solar system. Now if you thought the concept of Planet Nine was astonishing, consider if the mysterious body wasn’t a planet at all - but a black hole.
Reports of Betelgeuse’s Death Are Greatly Exaggerated, with Emily Levesque
In December 2019, amateur and professional astronomers held their breath as the red supergiant Betelgeuse started dimming beyond anything on record, a sign the behemoth might be preparing to go supernova. But over the ensuing few months, things seemed to be returning to normal for this fascinating star. To solve the mystery, a team set out to investigate this bizarre behaviour and to shed light on the fate of Betelgeuse. Today we’re joined here at the Star Spot by Emily Levesque to discuss their findings.
Wormholes through Space and Time, with John Cramer
They are the stuff of science fiction, but wormholes are also the subject of intense scientific debate. Can wormholes provide a mechanism for faster than light travel through space and, even more intriguing, do they open the door to travel through time? Today we’re joined here at The Star Spot by one of the world’s foremost authorities on wormholes, Professor John G. Cramer, to share results from his thought experiments on wormholes and his laboratory experiments aimed at changing the past.