Researchers demonstrate an invisibility cloak that can be scaled to almost any size and say it could be used to hide orbiting satellites
A mirror ball--the most perfect test particle ever placed in orbit--should help Italian scientists measure an exotic effect predicted by general relativity
The A4 digital scanner gathering dust under your desk could find new life as a gigapixel holographic microscope, say Japanese engineers who have constructed one at minimal cost
Atomic force measurements show that the bond between two gold atoms is highly directional and molecular-like, a finding with significant implications for the design and construction of atomic-scale devices
Darkened varnish obscures Goya's signature in a 1771 masterpiece, according to a new analysis using terahertz waves
Ever wondered what fuel fires potatoes out of a cannon the fastest? The US Air Force now has the answer
With 3-D printing poised to go mainstream, will we soon all be able to print a gun?
Nobody knows what exploded over Siberia in 1908, but the discovery of the first fragments could finally solve the mystery.
A materials scientist has created the world's toughest fiber using a mechanism based on a slip knot.
A lab at Harvard is developing materials with potentially revolutionary optical characteristics.