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

Astronomers have finally watched a black hole do something Albert Einstein only described on paper: twist the very fabric of ...

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

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 ...

Former Google Chief Executive Eric Schmidt is the new chief executive of Long Beach based Relativity, which aims to compete with other rocket companies. Leader: New Relativity CEO Eric Schmidt. (Photo ...

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

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 describes the ...

One hundred years ago this Wednesday, Albert Einstein gave the last of a series of presentations to the Prussian Academy of Sciences, which marks the official completion of his General Theory of ...

Why can't anything travel faster than the speed of light? Do black holes really suck? And why is the universe expanding? These are just a few of the questions author and astrophysicist Jeffrey Bennett ...

UltraV Holdings LLC, a joint venture of funds of asset management firm Sound Point Capital Management and RMRM Holdings, will buy the firm for an undisclosed price tag. By Georg Szalai Global Business ...