Space Force officials are assessing the aftermath of the massive Blue Origin rocket explosion at Cape Canaveral last week. Here's what we know.

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 ...

Space-based nuclear weapons are a serious matter, and one that deserves the very highest level of national attention.

SpaceX has transformed the space industry, but its rockets have also developed a reputation for dramatic test failures and mid-flight explosions. The company argues these setbacks are part of an ...