Nozzle alignment played a huge part in the ... and pen launchers to the US and other militaries. Spin stabilized rocket flares can still be bought today. On May 4, 1970, Kent State students ...

Breaking space news, the latest updates on rocket launches, skywatching events and more! Within each category, a numerical rating (e.g., X1, X2, X10) further defines the flare's strength.