Every week, the readers of our space newsletter, The Airlock, send in their questions for space reporter Neel V. Patel to answer. This week: how to produce artificial Earth-like gravity through ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. For gravitation, the big lesson from Einstein is the equivalence ...

While most of us have never had the opportunity to go into space, we all have the chance to dream about it and wonder what it would be like. Across a wide variety of science fiction shows, you can ...

According to legend, Galileo dropped weights off of the Leaning Tower of Pisa, showing that gravity causes objects of different masses to fall with the same acceleration. In recent years, researchers ...

I had an interesting thought, spurred on by a discussion I ran across online about firing guns in space. Apparently, smokeless powder contains its own oxidizer and so you could shoot normal firearms ...