NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, ...

The Space Launch System rocket's RS-25 engine was fired up for the “final round of certification testing ahead of production ...

SpaceX chief Elon Musk said in February that the mighty Starship rocket would embark on its 12th test flight this month, although several more recent reports have suggested that it might not leave the ...

On March 28, 1963 NASA launched the first stage booster of its new Saturn 1 rocket on a fourth and final test flight. [‘On This Day in Space’ Video Series on Space.com] This uncrewed suborbital flight ...

Add Yahoo as a preferred source to see more of our stories on Google. Nasa has taken another crack at fuelling its giant moon rocket after leaks halted a initial dress rehearsal and delayed the first ...

For more than 60 years, nearly every large rocket used some combination of the same liquid and solid propellants. Refined ...