When the first-ever image of a black hole was released in April 2019, it marked a powerful confirmation of Albert Einstein’s theory of gravity, or general relativity. The theory not only ...

The only known pulsar duo sheds new light on general relativity and more For 16 years, scientists have been observing a one-of-a-kind system of two pulsating dead stars ...

Relativity Space is a startup company that has produced the world's first 3D-printed rocket, the Terran-1. We explore the company in more detail here.