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

Forty years ago today, Americans were stunned, shocked and saddened when the Challenger space shuttle exploded 73 seconds after liftoff on a cold, cloudless day in Florida. A booster leak ignited the ...

Nevertheless, this rocket, named “Nell,” represented a historic achievement that would help launch the modern age of ...

One hundred years ago yesterday, Robert H. Goddard ignited a small rocket fueled by gasoline and liquid oxygen on a frozen ...

It's now been 40 years since New Hampshire school teacher Christa McAuliffe died when the space shuttle Challenger exploded. All seven on board were killed when Challenger broke apart following ...