Chris and Rob are joined by Lovely Scottish Grant and Becky Smethurst for an expanded-panel Recycled Electrons. We discuss Mars One, Mars’s mysterious plumes, and astronomers on Twitter. Also: Super Mario. Links:A near miss: http://www.rochester.edu/newscenter/scholz-star/ Cube sat mission ideas: http://www.planetary.org/blogs/guest-blogs/van-kane/0217-planetary-cubesats-begin-to-come-of-age.html Scientists slow the speed of light: http://www.bbc.co.uk/news/uk-scotland-glasgow-west-30944584 Mystery Mars haze ‘baffles’ scientists: http://www.bbc.co.uk/news/science-environment-31491805 Mars/Moon/Venus Conjunction on Feb 20th: http://www.universetoday.com/118906/catch-a-conjunction-triple-play-on-february-20th-as-the-moon-meets-venus-mars/ Rosetta is taking really close-up shots now: http://www.slate.com/blogs/bad_astronomy/2015/02/16/rosetta_closeup_photos_from_a_low_pass_over_the_surface.html We don’t know what hit Chelyabinsk: http://www.psi.edu/news/papervishnu Astronomers on Twitter: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0106086 Wikipedia sonification: http://listen.hatnote.com/ [MP3 Link] Episode #133. 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. Credits: Audio content Copyright 2011-2015 Chris Lintott and Robert Simpson. Many thanks to Oxford Press Office for recording space. Podcast Image of lightbulb courtesy of Flickr user bazik (http://www.flickr.com/photos/bazik/395792175/).