Volcanoes swell and collapse back down in what seem like giant sighs. These movements may help scientists better predict eruptions. The NEAR craft landed safely on an asteroid last week, snapping 69 detailed photos of the surface as it touched down.
Readers air their views on exhibiting plastic corpses in science museums.
All wishful thinking. Scientific American's readers report their experiences and share their observations. If one were to judge by recent headlines, science did not approach the end of the millennium on a stellar note. Much of the world's water is stored in glaciers and the great polar ice sheets. But these frozen reservoirs are melting rapidly and the water they release could cause a catastrophic rise in sea levels.