 
          The Sky at Night S18E10 - The Changing Force of Gravity
            
              8.3/10 by 13 users
            
            
              Has gravity always been the same? There have been suggestions that the force of gravity today is weaker than it used to be. Patrick Moore and Colin Ronan discuss this fascinating theory and try to decide whether we are all getting lighter. 
            
          | Released | Apr 24, 1957 | 
|---|---|
| Runtime | 30min | 
| Genre | Documentary, News | 
| Actor | N/A | 
| Director | N/A | 
| Production | N/A | 
 
           
           
           
           
           
           
           
           
           
          