One of Stephen Hawking’s Most Famous Theories About Black Holes Just Suffered a Huge Blow

By Meredith Fore One of Stephen Hawking’s most famous theories about dark matter — that this mysterious and invisible substance is made up of primordial black holes — recently suffered a huge blow. That conclusion comes from a massive telescope that captured an image of an entire galaxy in one shot. The findings don’t completely rule out Stephen Hawking’s …