On a cool October morning in 2025, a sleek jet streaked across the sky above California’s Mojave Desert. This was NASA and ...

Although to reach space and stay in orbit from a near-flat trajectory, the company says the launch vehicle needs to reach ...

Seven down. Three to go. Boom Supersonic—the developer of a 64-to-80-passenger commercial airliner that flies faster than the speed of sound—last week set speed and altitude records with its XB-1 test ...

Boom Supersonic has an impressive new speed record in its latest test flight with its XB-1. With its vision set to revolutionize air travel, this is a huge step to make things happen. The test flight ...

Despite what you may have heard elsewhere, science isn’t just reading [Neil deGrasse Tyson]’s Twitter account or an epistemology predicated on the non-existence of god. No, science requires much more ...

Stratolaunch aerospace company may conduct a hypersonic test flight from California. Test uses world's largest aircraft as an ...

Scientists have discovered the fastest possible speed of sound, a zippy 22 miles (36 kilometers) per second. This exercise was largely theoretical: The researchers found that the answer, which is ...

When we talk about the speed of sound, we usually mean how fast it moves through air. But it can travel much faster through other media, and now scientists at the University of Cambridge and Queen ...

The speed of sound varies depending on the temperature of the air through which the sound moves. On Earth, the speed of sound at sea level — assuming an air temperature of 59 degrees Fahrenheit (15 ...