Every Wednesday, Dr. Michio Kaku answers reader questions about physics and futuristic science. If you have a question for Dr. Kaku, just post it in the comments section below and check back on Wednesdays to see if he answers it.
Today, Dr. Kaku addresses this question from DeborahC: Astronomers discovered what are believed to be the largest black holes in the universe. Now it’s possible that they may have found the smallest. What’s the Significance?