A little Eiffel Tower rises from goopy resin in just one hour, thanks to a new 3-D printing method that manipulates ultraviolet light and oxygen to create detailed objects.
Power to the people: New material developed by physicists in South Korea generates electricity as it moves.
In this view from the Hubble Space Telescope, a massive galaxy in a cluster of galaxies produces multiple images of a single distant supernova behind it. The images of the exploding star are arranged in a cross-shaped pattern called an Einstein cross. In the enlarged inset view, arrows point to the four images.
By watching for light’s ‘echoes,’ physicists think they can retrieve information being relayed by or as light. It could make it possible for astronomers to view distant objects without having to see the light they cast off.