Cheap Astronomy - Dear CA # 083: Black Holes. Again.

<p class="p1"><strong>Back in black.</strong></p> <p class="p1"><em>What’s in a black hole?<span class= "Apple-converted-space"> </span></em></p> <p class="p1">Answer: Don’t know – and coming up next week we investigate where the edge of the universe is… OK, just kidding. The whole idea of an event horizon is that anything lying beyond it is unknowable.</p> <p class="p1"><em>Can you really have planets around a black hole?<span class="Apple-converted-space"> </span></em></p> <p class="p1">This is yet another reference to the movie Interstellar, which was built around the premise of a black hole called Gargantua having three orbiting planets. This is an entirely theoretical scenario, as we’ve never observed a black hole with orbiting planets, but it is plausible.</p> <p class="p2"> </p> <p class="p1">We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.<span class="Apple-converted-space"> </span></p> <p class="p1">Just visit: <a href= "https://www.patreon.com/365DaysOfAstronomy">https://www.patreon.com/365DaysOfAstronomy</a> and donate as much as you can!</p> <p class="p1">Share the podcast with your friends and send the Patreon link to them too!<span class= "Apple-converted-space"> </span></p> <p class="p1">Every bit helps! Thank you!</p> <p class="p1">------------------------------------</p> <p class="p1">Do go visit <a href= "http://www.redbubble.com/people/CosmoQuestX/shop">http://www.redbubble.com/people/CosmoQuestX/shop</a> for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!</p> <p class="p1"><a href= "http://cosmoquest.org/Donate">http://cosmoquest.org/Donate</a> This show is made possible through your donations.<span class= "Apple-converted-space"> </span></p> <p class="p1">Thank you! (Haven't donated? It's not too late! Just <a href="http://cosmoquest.org/Donate">click</a>!)</p> <p class="p1">------------------------------------</p> <p class="p1">The 365 Days of Astronomy Podcast is produced by the Planetary Science Inst