I think as long as it's unsolicited you can send them money - https://nodis3.gsfc.nasa.gov/npg_img/N_PD_1210_001G_/N_PD_1210_001G__main.pdf https://nodis3.gsfc.

I think as long as it's unsolicited you can send them money - https://nodis3.gsfc.nasa.gov/npg_img/N_PD_1210_001G_/N_PD_1210_001G__main.pdf https://nodis3.gsfc.nasa.gov/npg_img/N_PD_1210_001G_/N_PD_12...