Photo: NASA (Outer Image)/ compound image by autoevolution (Inner Image) Chemical fuel is nasty stuff to squishy, vulnerable flesh sacks called humans, from the noxious, flammable vapor of gasoline to ...

An out-of-control satellite is expected to re-enter the Earth's atmosphere in the next couple of weeks, but U.S. officials say they have determined that the risk to humans does not warrant a ...

Since the early days of Donald Trump’s political rise, mental health experts have argued over the ethics of diagnosing the once-and-wannabe-again POTUS from a distance. There is one stark precedent, ...

New Delhi: The go-to choice for spacecraft fuel today is hydrazine, a toxic and carcinogenic fuel that requires Self Contained Atmospheric Protective Ensemble (SCAPE) suits for loading into satellites ...