David Kestenbaum David Kestenbaum is a science correspondent for NPR. His job allows him to combine his extensive background in physics with his love of broadcast journalism.
DOE Targets Unsecured Uranium
Nuclear Waste Clean-Up Plans Fuel Debate
Robot to Hubble's Rescue?
U.S. Eyes Security Reforms for Nuclear Sites
Energy Department Seeks to Avert Nuclear Plant Break-Ins
Report Questions Nation's Nuclear Plant Security
Gravity Probe B to Test Einstein's Theory
NASA Set to Test Einstein's Relativity Theory
Missile-Shield Plan Goes Ahead
Protecting the Nation's Nuclear Materials, Part 3
Protecting the Nation's Nuclear Materials
NASA to Test 'Scramjet' Aircraft
Critics Doubt NASA's Hubble Plans