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    PBS Space Time
            What If Alien Life Were Silcon-Based?
                
                    
                        
                            Season 9
                        
                    
                    
                        
                            Episode 3
                        
                    
                
            
            
            Life as we know it is carbon-based, but does it have to be this way? There’s another element on the periodic table that shares some of the key properties of carbon but is far more abundant on most planets. I’m talking about silicon. So is there silicon-based life out there?
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          13:48
        
      
    
  
  
                    
                
            We explore how forces of nature, once unified, were forced to separate.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          12:50
        
      
    
  
  
                    
                
            This is how the Penrose Singularity Theorem Predicts The End of Space Time.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          12:39
        
      
    
  
  
                    
                
            if time is connected to space does that mean that the future is predestined?
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          13:09
        
      
    
  
  
                    
                
            We explore what exists in the past, present and future.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          13:01
        
      
    
  
  
                    
                
            We may have detected the signature of alien life - Venusian life -for the first time.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          14:39
        
      
    
  
  
                    
                
            Can solving quantum cryptography prevent us from digital collapse...and are we close?
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          10:47
        
      
    
  
  
                    
                
            Fundamental kinks in the universe may evolve into complex structures within the stars.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          13:29
        
      
    
  
  
                    
                
            We explore if chasing the beauty in physics is an actual good course of action.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          11:13
        
      
    
  
  
                    
                
            This how we finally figured them out.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          13:42
        
      
    
  
  
                    
                
            We discuss the incredibly ambitious plans for future colliders.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          10:41
        
      
    
  
  
                    
                
            We take a look at the dysfunctional stellar relationships among the stars.
        
        
     
    
                        
  
  
    
      
    
  
  
    
      
        
          11:22
        
      
    
  
  
                    
                
            The boundary between neutron stars and black holes promises to reveal secrets of both.
        
        
     
     
     
     
     
     
     
     
     
     
     
    