The Star Spot

Feature Guest: Marc Kamionkowski

When we study the cosmic microwave background we see our universe before its infancy. But we learn about today’s biggest mysteries, like gravitational waves and supersymmetric dark matter.

Professor Marc Kamionkowski has won a top prize in cosmology for showing us how to “read the subtle bumps and swirls in our images of the early universe” and he joins me at The Star Spot to share secrets from the dawn of time.

Current in Space

Anuj shares discovery of organics in protoplanetary disks of newly formed solar systems. Then following trailers for the upcoming Star Wars film, Tony explains that Tatooine like rocky worlds with twin suns may be out there in the galaxy. Dave shocks us with the possibility of moon caves deep under the lunar surface. And Laura reports that Chiron, a minor planet between Saturn and Uranus known as a centaur, was found to contain rings. 

About Our Guest

Marc Kamionkowski is Professor of Physics and Astronomy at Johns Hopkins University, previously at the The California Institute of Technology. He was awarded the US Department of Energy's 2006 E. O. Lawrence Award in High Energy and Nuclear Physics as well as the  the Dannie Heineman Prize for Astrophysics from the American Astronomical society and the American Institute of Physics. His research interests include particle physics, dark matter, inflation, the cosmic microwave background and gravitational waves.

Direct download: TheStarSpot-Ep75-Marc_Kamionkowski.mp3
Category:general -- posted at: 9:00pm EDT

Feature Guest: David Brain

When our solar system was young, newborn Earth and Mars were like siblings, similar in climate, water composition and atmosphere. But it turns out 4.5 billion years can change things between two planets.

Today I’m joined at The Star Spot by Professor David Brain to help us understand how Mars ended up so different from Earth, where the Red Planet is headed and what all this means for our search for life.  

Current in Space

A 345 year old mysterious stellar event could finally be solved, Anuj explains. Then Dave describes the influential role played by Jupiter when a time long ago Earth survived an attack from the giant.

About Our Guest

Professor David Brain is Assistant Professor at the University of Colorado Boulder in the Laboratory for Atmospheric and Space Physics at the Department of Astrophysical and Planetary Sciences. He is co-investigator for the Mars Atmosphere and Volatile Evolution (MAVEN) mission science team. Scientists hope MAVEN, which arrived at the Red Planet September 2014, will explain where all the Martian atmosphere has gone.

Direct download: TheStarSpot-Ep74-DavidBrain.mp3
Category:general -- posted at: 9:00pm EDT