Radio waves are electromagnetic.Right?? "Phoenix was on track for anticipated entry into the atmosphere at 4:30p.m. Pacific Time and reaching the surface at 4:38 p.m., although confirmation of those events comes no sooner than 15 minutes, 20 seconds later, due to the time needed for radio signals to travel from Mars to Earth." source: http://www.kintera.org/cms.asp?id=5...nLXK6OBLXLuKJXdP9OXI3PGKdLOLXPHE&auid=3696421 But light takes just 8 minutes to reach earth from the sun, and here radio waves are taking 15.Is Mars farther than the sun from earth at present??