 Van Tassel also claimed that Ashtar had provided specific messages that he was expected to pass on to the U.S. federal government regarding the potential negative impacts of the proposed upcoming bomb tests.After the actual explosion of the H-bomb by the US and Russian governments, the channeling claimed that the space forces had assisted the planet to survive the bomb tests.As the weekly channeling sessions at Giant Rock continued through the early 1950s, the concept of an "Ashtar Command" was appropriated for use by a number of prominent early contactees and channelers, based on the figure of Ashtar, originally promoted by Van Tassel.