We are fascinated by the hybrid rocket engine which [Ben Krasnow] built and tested in his shop. It is actually using a hollow cylinder of acrylic as the fuel, with gaseous oxygen as an oxidizer.

is repackaged from the backend of Space Shuttle Orbiters into a more traditional inline rocket stage. SLS upsized the Shuttle elements — the big fuel tanks are now longer, and there are more ...

Join our Whatsapp channel PARIS: A stunning blue and white spiral spotted in skies across Europe late Monday was created by frozen fuel tumbling from a SpaceX rocket, according to weather ...