Have you ever looked up at the night sky and tried to count all the stars? Good luck with that! Our galaxy, the Milky Way, has about 100 billion stars. Space is amazing! Let's reveal some of the most fascinating space secrets in this video. Astronomers say there might be a labyrinth of lava tubes on the Moon. What is it hiding? And I'll show you the most picturesque sunset you've ever seen: it's on Mars and is painted in hues of orange, red, and yellow! Learn more about your ad choices. Visit megaphone.fm/adchoices