Doing Gravity

Summary: Chris and Rob discuss the fundamental constants of the Universe, Pluto and Comet ISON. There’s more from GRAIL around the Moon and even comments on podcasting itself. [MP3 Link] Episode #94. If you have anything you’d like us to look at, or any questions you’d like us to answer - use the links at the top of the web page at http://recycledelec.com. Follow us on Twitter @recycledelec @orbitingfrog and @chrislintott. Links: The Economics of Space Travel: http://www.economist.com/news/science-and-technology/21588350-dismal-scientists-also-speculating-about-space-flight-starship-enterprises Fall and Rise of podcasting: http://www.allenpike.com/2013/fall-and-rise-of-podcasting The proton-electron mass probably isn’t changing : http://arxiv.org/abs/1311.3438 The phantom menace of galaxy clustering : http://arxiv.org/abs/1311.1818 Pluto in new detail: http://phl.upr.edu/library/notes/serfirstlookatpluto ISON Good and Bad News: http://stardate.org/mediacenter/Comet_ISON GRAIL results : http://www.jpl.nasa.gov/news/news.php?release=2013-322 Asteroid with six tails : http://www.nasa.gov/press/2013/november/nasas-hubble-sees-asteroid-spouting-six-comet-like-tails/ Earth from all angles: http://www.youtube.com/watch?v=2lR7s1Y6Zig Einstein burning up: http://orbitingfrog.com/2013/11/07/1-6-tonnes-of-rubbish-burning-up-in-the-atmosphere/ Credits: Audio content Copyright 2013 Chris Lintott and Robert Simpson. Many thanks to Oxford Press Office for recording space. Podcast Image courtesy of Flickr user bazik (http://www.flickr.com/photos/bazik/395792175/).