Walkabout the Galaxy Posts

November 4, 2014 / Astrophysics

This week’s episode is dedicated to the late Tom Magliozzi, one of the Car Talk brothers, whose infectious laughter livened up the airwaves for 25 years. In his honor, while discussing the discovery of “ghost…

October 26, 2014 / Episodes

Josh, Addie and Tracy report on the discovery this summer of three potential post-Pluto targets for the New Horizons spacecraft in the Kuiper Belt. The Hubble Space Telescope was called into service to help the…

October 13, 2014 / Episodes

Get ready for your hibernation trip across the galaxy. Watch out for Aliens and killer computers. Josh, Addie and Tracy discuss research into putting astronauts into a state of “torpor” to help survive those long…

October 7, 2014 / Episodes

Josh and Addie welcome Dr. Catherine Neish from the Florida Institute of Technology for a discussion of the proliferation of spacecraft at Mars, now including an Indian mission, the final fizzle of the earlier-reported detection…

October 6, 2014 / Episodes

Josh, Addie and Tracy discuss new calculations that show that roughly half of the water on the Earth formed before the solar system itself formed. Water forming in interstellar space means it’s available for all…

September 22, 2014 / Episodes