Radio waves are electromagnetic.Right?

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SUMMARY

Radio waves are indeed a form of electromagnetic radiation. The discussion highlights the time delay in radio signal transmission from Mars to Earth, specifically noting that signals take approximately 15 minutes and 20 seconds to arrive, compared to light from the sun, which takes 8 minutes. This delay is attributed to the greater distance of Mars from Earth during a Hohmann transfer orbit, which is a method used to optimize travel between two celestial bodies.

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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??
 
Astronomy news on Phys.org
Yes. That is characteristic of a Hohmann type transfer. You target the vehicle two arrive when the planets are in opposition.
 

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