Opinions expressed by Entrepreneur contributors are their own. Amazon Fire Phone, Google Glass, New Coke and Nintendo’s Virtual Boy: What do all these products have in common? They didn’t sell.

The final phase of the TE-1 project put the working prototype through testing for the first time, managing results that uphold initial claims of game-changing tech, but a production electric ...

How do you close the gap between I wonder and I know? You make a prototype. A prototype is a tool that gives you a chance to investigate your ideas and explore what could, should, or would come next, ...

Tesla has been spotted testing a Model 3 prototype with what appears to be a new camera setup. Is Tesla preparing a new vision rig for its next vehicles? While most other companies working on ...

At the PARI Hypersonics Advanced Manufacturing Technology Center (HAMTC), from left: Nate Humbert, lead additive manufacturing engineer, GE Additive; Will DeVerter, aeronautics and astronautics ...

Radian Aerospace’s subscale prototype for its Radian One space plane sits on a runway in the United Arab Emirates. (Radian Aerospace Photo) Seattle-based Radian Aerospace has finished the first round ...

A Kia EV2 prototype took part in a brutal sub-zero range test in Norway and lost less than 25% of its claimed range.

Anglo‑German defence and aerospace company Hypersonica has carried out its first flight test of a prototype hypersonic strike missile, the company announced in a ...

U.K.-based electric vertical takeoff and landing (eVTOL) air taxi manufacturer Vertical Aerospace is back to testing aircraft. The manufacturer has begun ground testing a new, more advanced full-scale ...