Radio astronomy is a field of astronomy to study celestial objects 
at radio frequencies. The initi...
  
   
  
  
      
  
  
  
  
  
  
  
                
A galaxy is a massive, gravitationally bound system which 
consists of stars, stellar remnants,  in...
  
   
  
      
  
  
  
  
  
  
  
                Planets have their distinctive appearances. For example, why did the ancient Martian ocean disappear...
  
   
  
      
  
  
  
  
  
  
  
                Planetary orbiters and/or landers can  provide us with in-situ measurement data of  the target bodie...
  
   
  
      
  
  
  
  
  
  
  
                Geodesy is a research field in which shape, rotation, and gravity of the Earth as well as their temp...
  
   
  
      
  
  
  
  
  
  
  
                Selenodesy is a natural extension of the Earth geodesy (measurement of the shape, gravity, rotation...
  
   
  
      
  
  
  
  
  
  
  
                Development of instruments is one of the essential elements for astronomy and planetary science.
VER...