Let's turn the sun into a telescope. In fact, we don't have to do any work—we just have to be in the right spot.

Longtime NHL executive Ray Shero, the general manager of the Pittsburgh Penguins when they won the Stanley Cup in 2009, has died. He was 62. The Minnesota Wild announced Shero’s death Wednesday. A ...

Abstract: X-ray flat surfaces utilized in most advanced light sources have posed challenges to achieve form accuracy of PV 2 nm, RMS 0.2 nm and RMS 50 nrad ...