Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. Imagine a rocket that works without fuel. You pump energy into it and ...

In major international tests, the physics-defying EmDrive has failed to produce the amount of thrust proponents were expecting. In fact, in one test at Germany’s Dresden University, it didn’t produce ...

The reactionless thruster was met with a surge of excitement — and scepticism — when reports of its science-fiction sounding ability to pull fuel out of the void of space itself emerged in 2001. If ...

About 10 years ago, a little-known aerospace engineer called Roger Shawyer made an extraordinary claim. Take a truncated cone, he said, bounce microwaves back and forth inside it and the result will ...

A new theory of inertia could explain how NASA is generating thrust with a new drive design, and may even show them how to make it more powerful. Share on Facebook (opens in a new window) Share on X ...

NASA is renowned for doing really difficult stuff. You want to drop a Mini-sized lander on Mars using a sky crane? Well, NASA will do that for you. There is a view of NASA as staid and conservative ...