Aresearch.157 net.columbia utzoo!decvax!ucbvax!ihnss!houxf!harpo!research!sjb Mon Nov 16 20:13:18 1981 STS-3 A crewmember for STS-3 said that NASA was planning an extravehicular activity, namely a spacewalk, for the next mission, but later tones that down by saying that it was only in the ``dream stage.'' Officials were working out rules for such an EVA but none is currently planned. A crew for STS-3 will be announced after Engle's and Truly's press conference, next week. For the third flight, Canadarm will perform its first test with an object by grabbing an instrument that will scan the cargo bay for gases and other pollutants and then putting it down and letting go.