Because the moon has less gravity than Earth does, time passes slightly differently there. This effect was first predicted by ...

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

There’s an adage coined by [Ian Betteridge] that any headline ending in a question mark can be answered by the word “No”.

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

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

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

LOS ANGELES--(BUSINESS WIRE)--Relativity today announced the close of its $35 million Series B financing, led by Playground Global with full participation from existing Series A investors Social ...

Last week, Relativity Space and Impulse Space announced a partnership to launch the first private mission to Mars. The two startups say they’ll try to launch a Red Planet lander as early as 2024.

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

Relativity Space says it’s brought in another $500 million in investment to speed up its effort to build entire orbital-class rockets using 3D printing. The startup — which was founded in Seattle less ...