For more than a century, Einstein’s relativity has set a hard speed limit for the universe, with light as the ultimate ...

Relativity says the $650 million Series E funding round will allow it to accelerate development of Terran R, a vehicle designed to be fully reusable and carry payloads of more than 20,000 kilograms ...

A new solution to Albert Einstein's theory of general relativity suggests hypothetical gravitational stars that look like black holes could be nested within one another. When you purchase through ...

Relativity Space, which recently launched the world’s first 3D-printed rocket in a maiden test flight, is pushing forward with its next-generation reusable rocket, the company announced. The ...