dr. floyd, how long do you think this can be kept under wraps? yes, it does. the sub-surface structure shows that it was deliberately buried about four million years ago. by the deformation between the mother rock and the fill. not really. it's completely inert. no sound or energy sources have been detected. the surface is made of something incredibly hard and we've been barely able to scratch it. a laser drill might do something, but we don't want to be too rough until we know a little more. tomb, shine, survey-marker spare part, take your choice. the moon would have made an excellent base camp for preliminary earth surveys. well, not really. at first glance, black would suggest something sun-powered, but then why would anyone deliberately bury a sun- powered device? i don't think it has, but i'd like to check that. simpson, what's the log on that? thank you.