https://www.vice.com/en_us/article/bvjm43/everything-you-ever-needed-to-know-about-hypersonic-missiles

As the Russian invasion of Ukraine grinds on and tensions rise between the U.S. and China, the specter of new hypersonic weapons looms larger. These are super-fast and maneuverable missiles that can be nuclear-armed, and which Russia, China, and the U.S. are all racing to develop and deploy. Putin and the media have previously described them as “invincible” and “unstoppable” by modern anti-missile systems.

But what makes a weapon hypersonic, why does everyone seem to want them, and are they really all they’re cracked up to be?