astro comics pluesch schwarzes lochBlack holes are among the most fascinating objects in the universe only their twins are even more mysterious: White Holes! Astro Comics' plush black hole can be turned inside out to become a white hole in no time at all. Two fascinating cosmic objects in one plush toy! Tim Ruster, better known as Astro Tim, writes astro comics, space books and explains the universe to people of all ages on his YouTube channel. He was already enthusiastic about space