Astrophysicist Janna Levin, PhD, is asked to explain black holes to 5 different people; a child, a teen, a college student, a grad student, and an expert. <br /><br />Special thanks to our host Janna Levin who’s literally written the book on black holes<br /><br />‘Black Hole Survival Guide’<br /><br />https://www.penguinrandomhouse.com/books/622603/black-hole-survival-guide-by-janna-levin/For more science and space insights follow Jann on twitter at @JannaLevin
