In the 25th episode of Exocast: Jessica Spake joins us to chat about the first detection of exoplanetary Helium – around the planet Wasp-107b Andrew covers whether alien biology could exist in a Shadow Biosphere here on Earth. Hannah covers all of May’s exoplanet news; And Jess invites an old friend to the exocast adopted planets – 51 Pegasi b, the first exoplanet detected around a sun-like star. http://media.blubrry.com/exocast/www.exocast.org/wp-content/uploads/2018/05/exocast-25b_edit1.mp3Podcast: Play in new window | DownloadSubscribe: