Plexrum Protocol deployed its Sepolia testnet prototype, allowing users to test sample real estate-related asset ...

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.

Seattle-based startup Nimbus Aerospace has completed successful test flights of its quarter-scale hybrid aircraft prototype ...

Star Catcher Industries is preparing its Protostar spacecraft for a power-beaming test that could ...

Regent Craft has received U.S. Coast Guard approval to begin testing its electric-powered seaglider prototype, the Viceroy. The Viceroy seaglider is a 12-seat, wing-in-ground effect craft designed to ...

The Einstein telescope project has reached a new stage, with the E-TEST prototype—developed in the ULiège and CSL laboratories—being sent to the Liège Space Centre to undergo a battery of cryogenic ...

The last time we heard from the UK's AltoVolo, it only had renders of its grand vision for a sportscar equivalent of an eVTOL to show off. That was exactly a year ago – and it's now got a working ...

A prototype is an early, trial version of a product/service made to test and improve ideas before the final version is created. Prototype is a preliminary, often incomplete, version of a product, ...