| Atomic nuclei etc travelling through space (6,4) |  |  | 
          
            | Cry "mosaics" as they come down to earth (6,4) |  |  | 
          
            | Penetrative particles from interstellar space (6,4) |  |  | 
          
            | Massive fish? | The Washington Post | 25 Feb 2021 | 
          
            | Massive fish? | LA Times Daily | 25 Feb 2021 | 
          
            | Extraterrestrial factor in creating much of Earth's carbon-14 |  |  | 
          
            | Extraterrestrial factor in creating much of Earth's carbon-14 |  |  | 
          
            | Source of the Fantastic Four's superpowers |  |  | 
          
            | Particles beamed from outer space. |  |  |