Sun, 14 December 2014
Feature Guest: Brian Schmidt
The 1929 discovery of the expanding universe by Edwin Hubble forever changed our picture of the cosmos and our understanding of our place in the universe. In 1998 we learned that wasn’t the only surprise. That’s when two teams of astronomers announced that the expansion of our universe isn’t slowing down as everyone assumed. Its speeding up. Today we're joined at The Star Spot by Distinguished Professor Brian Schmidt who won the Nobel Prize for discovering our accelerating universe.
Current in Space
Anuj describes the Orion spaceflight, the first mission since Apollo eventually aimed at deep space. Then Tony wonders if the stuff of life could seed itself on other worlds following the disocvery that DNA returned from the exposure to the vacuum of space in good working order. And Dave extends the lifetime for Mars’ watery past after learning an ancient lake may have lasted tens of millions of years. Finally Celine explains how “cliff-bots” now being tested in the Moroccan desert may one day dig up deposits left over from such long extinct bodies of water.
About Our Guest
Dr. Brian Schmidt is Distinguished Professor at the Australian National University Mount Stromlo Observatory and holder of an Australian Research Council Federation Fellowship. In 2011 Schmidt received the Nobel Prize in Physics for his co-discovery that the universe isn’t merely expanding, it’s actually accelerating in its expansion. Shmidt is Fellow of the Royal Society, a recipient of the Pawsey Model, the Dirac Medal and the Shaw Prize in Astronomy.
Direct download: TheStarSpot-Episode67-BrianSchmidt-TheAcceleratingUniverse.mp3
Category:general -- posted at: 9:00pm EDT
Sun, 30 November 2014
Feature Guest: Alison Sills
It’s a phenomenon so mysterious one astronomer wondered if it could be evidence of an advanced extraterrestrial intelligence. Meet blue straggers, the black sheeps of the stellar family. Today we're joined at The Star Spot by Professor Alison Sills to learn all about the stars that shouldn’t exist.
Current in Space
Dave mesmerizes us with the carnival funhouse like effect around black holes, where the warping of space and time is so intense you can see the front and back of blackholes simultaneously. Celine discusses an upcoming unmanned mission to drill the moon for lunar samples and establish the viability of a future human outpost. And while you may have heard of the Great Red Spot on Jupiter, Tony wonders if the entire spot is red, why it's red and why so little else on the gas giant shares the iconic colour. Finally Yonna brings us news of Europe's first space plane set to launch shortly.
About Our Guest
Alison Sills is Professor of Physics and Astronomy at McMaster University in Hamilton, Ontario. She received her PhD from Yale University and held postdoctoral positions at the Ohio State University and the University of Leicester in the UK. She studies weird stars in odd places, utilizing computation tools to model the evolution of stellar populations. Along with researchers from Canada, the US and Europe, she is an active member of the MODEST collaboration, which stands for MOdelling DEnse STellar Systems.