When astronomers talk about an optical telescope, they often mention the size of its mirror. That's because the larger your mirror, the sharper your view of the heavens can be. It's known as resolving ...

Stellar intensity interferometry is a powerful observational technique that exploits second-order coherence properties of starlight to achieve extremely high angular resolution. Building on the ...

The highest angular resolutions for telescopes can be achieved by arrays of telescopes called astronomical interferometers. Hypertelescopes are being worked on that would combine many, many telescopes ...

Record data speed: Cambridge team’s optical wireless system reached 362.7 Gbps using 21 lasers, halving energy use compared to leading Wi-Fi. Space mission progress: China’s Taiji-2 project tested an ...

Astronomers have now produced the highest resolution direct images ever taken of a supermassive black hole in the infrared, using the Large Binocular Telescope Interferometer. Active galactic nuclei ...

In an interferometer designed in accordance with Schützhold’s concept, it may be feasible not only to detect gravitational waves but also to control them for the first time through stimulated emission ...