Authorities in Huntsville, Ala. are reviewing the death of a 34-year-old aerospace researcher who worked on experimental anti-gravity propulsion, adding to a growing list of scientists with ties to ...

IntroductionSince I talked about mathematical formulas quite seriously last time, this time I will swing completely into ...

For more than a century, gravity has been the immovable backdrop of modern physics, a force that can be described and exploited but never truly switched off. Now a former NASA engineer says he has ...