Comments by "红火树 RedFireTree" (@firetree2007) on "'India Did It': After Chandrayaan-3 Success, ISRO's Aditya-L1 Reaches Destination | Watch" video.
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for such kind space travel , due to the earth is around and turning, so there is always time that at certain place (such as India) cannot contact the satellite in space, so you need to have at least 3 ground stations in apart 120 degrees on the earth to contact space probe continuously, NASA and ESA (Europe space agency) all have many ground stations around the globe, it is called deep space network, DSN, China also, beside ground stations, China use yuanwang ships with huge antennas in the different part of the world oceans to do the job, the whole India only has one ground station in Delhi, so India's space travel needs help from NASA and ESA,but have you ever heard your media mentioned them?? they all make it sounds like it is done all by India itself. For India's moon trip, both NASA and ESA helped, this time too, the DSN provided by ESA
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