By subscribing to a specific mailing list, you will get answers to your questions. This is a mailing list for those interested in becoming an astronaut. The list is restricted to discussions of issues related to becoming an astronaut.
Information concerning satellite launches and orbital elements is posted regularly.
Questions are particularly encouraged. A mailing list for the discussion of issues relating to the use of CCD systems in professional astronomy. This Email exploder is for discussions of the use of FITS for single-dish radio astronomy. A mailing list and Web archive dedicated to saving the deep-sky observations of amateur astronomers, with the widest possible range of experience, instrumentation, and conditions. A mailing list with over 100 subscribers internationally, dedicated to all aspects of meteor observing and meteorics.