A record-breaking gravitational wave signal let scientists "listen" to a distant black hole merger and put Einstein's gravity ...

New Analysis of Gravitational-Wave "Dark Sirens" Reveals Tension with General RelativityHONOLULU, Feb. 13, 2026 / PRZen ...

Physicists artificially slowed down time to reveal the bizarre Terrell-Penrose effect, a consequence of special relativity. This image from the experiment shows a sphere seemingly moving at 99.9 ...

Einstein–Rosen bridges may reflect a two-directional structure of time that preserves information and hints at a pre–Big Bang universe.

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 ...

Dubbed as 3I/ATLAS, an interstellar comet has occupied the centre stage for quite some time. 3I/ATLAS, which originated outside our solar system, has now reportedly confirmed one of Albert Einstein's ...

The revised version of the Terran R features increased performance, but will only reuse the first stage. Credit: Relativity Space WASHINGTON — Relativity Space has decided to retire its Terran 1 small ...

Rocket builder and 3D-printing specialist Relativity Space is raising $500 million of fresh capital in a new round being led by Tiger Global Management, people familiar with the financing told CNBC on ...

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 ...

Relativity Acquisition Corp., Special Purpose Acquisition Company This announcement follows the U.S. Securities and Exchange Commission (the “SEC”) declaring effective the Registration Statement on ...