Big, cheap invisibility cloaks are suddenly beginning to emerge thanks to some simple optical short cuts that physicists have discovered
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.