Scientists have developed a lens-free mid-infrared camera using a modern twist on pinhole imaging. The system uses nonlinear crystals to convert infrared light into visible, allowing standard sensors ...

Researchers have used the centuries-old idea of pinhole imaging to create a high-performance mid-infrared imaging system without lenses. The new camera can capture extremely clear pictures over a ...

If you wish to see the total solar eclipse in April, you should arrange to get yourself a pair of special eclipse glasses that will protect your eyes from the harsh rays of the sun. Related video ...