A specialized observing mode aboard NASA’s James Webb Space Telescope has overcome a major technical setback. After years of ...
Sufficiently dense objects warp spacetime so that it acts like a lens. If there is a very dense object such as a black hole or large star in the foreground, whatever is shining from behind it (like a ...
Fig. 1: Measurement setup of first FPI showing the two glass plates with a diameter of 0.3 m and the gap between them which is about 0.5 mm wide and is tuned to sub-nanometer accuracy in order to ...