Einstein’s Theory of General Relativity is currently our best approximation of how the universe ticks. But there are holes.

See how Relativity's Terran 1 rocket got from the 3D printer to the launch pad in these highlights. Credit: Relativity Space ...

The universe’s accelerating expansion has long puzzled physicists. For decades, dark energy, an unseen force thought to make ...

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

In this last part of our series on recently digitized books from the Wenner Collection, we are focusing on works that ...

California-based startup Relativity Space is one of many launch startups, but it stands out for its 3D-printing approach to manufacturing rockets while also pursuing fully reusable rockets. Relativity ...

Quantum mechanics and relativity are the two pillars of modern physics. However, for over a century, their treatment of space ...

A splashy California-based launch company named Relativity Space shared a photo of sleek-looking rocket hardware on its social media channels last week. The image featured an impressively large ...

Relativity Space uses giant 3-D printers to produce components for its Terran rockets. (Relativity Space Photo) Relativity Space, the startup that was founded in Seattle and is now building 3D-printed ...