Here’s what you’ll learn when you read this story:Some physicists believe that a fifth fundamental force could be the cause of some observational anomalies. However, since the mid-1980s, physicists have wondered if a fifth fundamental force could exist, which would help to explain some observational anomalies. Related Story Pop Mech Explains the UniverseAnd, of course, there’s a strong contingent of physicists who think a fifth force doesn’t exist at all . The idea is that any deviation in the expected trajectory of the asteroid could be the result of an unknown fifth force at work. So, while the ongoing exploration of the fifth force continues in accelerator labs around the world, some scientists are turning toward space to answer the deepest mysteries of physics.