Hello how may I help you? need to know what the deepest point on planet earth is Am I correct in understanding you'd like to know the deepest point on earth? yes please tell me this The mariana Trench is the deepest spot according to my data. how deep is this trench? aproximately 36,000 feet deep. wow i didnt know that Yeah it's a deep subject! ok thanks for your help You're welcome. I guess we both learned something new.