Which technological advance has helped scientists to search for life in ,begin emphasis,other,end emphasis, star systems? Answer options with 4 options A. development of planetary landers and rovers B. invention of spectrographs to study a stellar rotation C. invention of multi-stage rockets for deep space travel D. development of radio telescopes to monitor for intelligent transmissions
1 answer
D. development of radio telescopes to monitor for intelligent transmissions
1 answer