Speed of Sound

Baby, she's a firework: Katy Perry is heading to space.

With a potential cost climbing into the hundreds of millions of dollars, the fast-tracked Dark Eagle program is delayed, but the U.S. Army plans to acquire 300 of them.

Airbus also built the Rosalind Franklin rover, due to launch in 2028 to search for signs of past life

Nestled in a pod under an F/A-18 Hornet aircraft wing, flying above California, and traveling up to the speed of sound, NASA put a commercial sensor

Physicists have detected the highest-energy 'ghost particle' ever felt on Earth, with nearly 100 times more energy than any neutrino previously detected.

Hypersonic planes could move people and goods between Beijing and New York in two hours. But China needs to perfect the design and then build a commercial fleet.

By achieving a top speed of Mach 1.1, Boom Supersonic has broken records and is on course to revive supersonic passenger travel.

Observations of WASP-127b, a giant gas exoplanet more than 500 light years from Earth, suggest it has phenomenally high wind speeds

North Korea says it carried out its second missile test in two days — and this one was hypersonic. It came as U.S. Secretary of State Anthony Blinken visited the region.

The Zumwalt-class stealth destroyers will be mounted with experimental hypersonic weapon systems, but what makes this technology so lethal?

Small primordial black holes are perhaps the most interesting and intriguing relics from the early Universe.

Joshua Yaffa on the tenuous trajectory of the war in Ukraine, new weapons from the Biden Administration, and Vladimir Putin's threat of a Russian nuclear attack.

NASA's Quesst mission marked a major milestone with the start of tests on the engine that will power the quiet supersonic X-59 experimental aircraft.

Iran fired two of the largest barrages of ballistic missiles ever at Israel this year. Even the world's best defenses don't always stop them.

Using the Gaia space telescope, astronomers have observed 55 massive stars ejected from their home star cluster in the Large Magellanic Cloud at speeds equivalent to 80 times the speed of sound.

Buying a new phone, and getting the one you want, should be simple. However, due to the iPhone versus Android debate, it's anything but.

Jeff Bezos new $80 million private jet spotted at an airport in Los Angeles.

Even your earbuds are getting AI now.

Dawn Aerospace is a small startup with big ambitions: to build the first vehicle to fly over 100 km above the Earth — twice in one day. A couple of weeks back, the budding ...

Over the past decade, Pittsburgh has sunk nearly $10 million into ShotSpotter, the most widely used gunshot-detection system in America. The controversial crime-fighting technology uses sound to quickly pinpoint gunfire, allowing police to be rapidly deployed to crime scenes. Its makers claim it can help reduce gun violence and save