Saturday Citations: Test flight of the X-59; a confounding quantum calculation; the universe is not simulated

This week, researchers published LIGO findings that hint at the existence of second-generation black holes. Astronomers ...

Video. NASA’s supersonic jet completes first test flight

Video. NASA and Lockheed Martin have successfully tested the X-59, a supersonic jet designed to fly faster than sound with minimal noise — a step toward reviving quiet, high-speed commercial travel.

NASA’s supersonic jet completes first test flight

This photo provided by Lockheed Martin shows the X-59 jet plane, which was built by NASA and Lockheed Martin and can move ...

NASA's futuristic new aircraft sparks quiet supersonic revolution with pioneering flight

The X-59 features a distinctive elongated fuselage and wing design aimed at reducing sonic booms to a level of 75 decibels.