Here is an excellent article on the Perseid meteor Shower and comet Swift-Tuttle -- explaining the "what" of the Perseids and and "how" the debris trail and meteor shower are created and maintained by comet Swift-Tuttle. (Submitted by ASN Member Bradley Carlson)
NASA’s OSIRIS-REx mission to the asteroid Bennu needs extra pairs of eyes to help choose its sample collection site on the asteroid – and to look for anything else that might be scientifically interesting.