Featured by Mark Wolverton
A Sensor That Tracks Cosmic Particles Could Spot Hidden Nuclear Threats Before They Cross Our Borders
Smuggling a nuclear weapon into the U.S. is distressingly simple—all someone needs is a truck full of watermelons. Regulations prohibit...
The Telescope-Toting 747 That Sees More than Hubble
A telescope-toting 747 is about to become astronomy’s most versatile tool