NASA’s X-59 Nears First Flight

As we honor the legacy of aviation pioneers this National Aviation Day, NASA’s X-59 is preparing to push the boundaries of what’s possible in air travel. The quiet supersonic aircraft’s historic first flight is on the horizon, with final ground tests about to begin. Following completion of low-speed taxi tests […]

US DNI Tulsi Gabbard says the UK has agreed to drop its mandate requiring Apple to provide a backdoor for accessing users’ encrypted data (Kanishka Singh/Reuters)

Kanishka Singh / Reuters: US DNI Tulsi Gabbard says the UK has agreed to drop its mandate requiring Apple to provide a backdoor for accessing users’ encrypted data  —  U.S. Director of National Intelligence Tulsi Gabbard said on Monday the UK had agreed to drop its mandate for iPhone maker […]

Before spacecraft, how did astronomers determine the mass, size, and composition of the giant planets?

Before spacecraft missions, how did astronomers determine the mass, size, and composition of the giant planets (Jupiter, Saturn, Uranus, and Neptune)? K. QureshiCalgary, Alberta Excellent question. Astronomers are often faced with seeking information about objects they cannot visit to examine. Instead, they use mathematical laws and observation to determine the […]