On January 28, 1986, Space Shuttle Challenger broke apart just 73 seconds after liftoff. Pilot Michael Smith's final words ...

There was no weakness, and SLS arced out over the Atlantic like a fiery white angel, leaving a white smoky trail as the sound ...

NASA's powerful Launch Abort System, designed to outrun an exploding rocket, is the result of years of work from scientists ...

For more than 60 years, nearly every large rocket used some combination of the same liquid and solid propellants. Refined kerosene was favored for its easy handling and non-toxicity, hydrazine for its ...