QUESTION: Is it possible that without gravity to crush the trachea of insects such as the grasshopper, when they get to be a certain size, they could grow to an astronomical size? ANSWER from Michael Wiederhold on April 27, 1998: I hope the insects wouldn't grow to "atronomical" size. But, since they're "astrobugs", who knows? In fact we will have some answers next week when Neurolab lands. Dr. Eberhard Horn, from the University of Ulm, Germany, has cricket eggs and larvae developing on this flight. I believe Dr. Marc Tischler of the University of Arizona Health Center in Tucson has flown beetles on several shuttle flights. I suspect that a structure as small as an insect's trachea would be much more influenced on the ground by internal supporting structures than by gravity, so the removal of gravity is not likely to have major effects on its development, but we have found some differences in the gravity sensing organs in animals developed in space that we could not have predicted before the flights, so one must keep an open mind but temper speculations by what the physical forces might be and how great an effect gravity, or its removal, could be expected to exert. We have to do our physics and math before can make rational predictions about what would happen in Space!