How confusing inevitability with reality built decades of paradox. What if general relativity never actually tells us that ...

Relativity Space has completed a critical design review of its Terran R rocket as it works towards a first launch as soon as late 2026. Credit: Relativity Space WASHINGTON — Relativity Space, a launch ...

110 years ago today, Albert Einstein published his General Theory of Relativity, which redefined the relationship between matter and gravity. Suddenly, our mysterious universe made a little more sense ...

The answer once again starts with Albert Einstein—this time with his theory of general relativity, which describes gravity as a deformation of geometry. A theory which has also proven to be extremely ...

A new theory for the origins of dark matter suggests that fast-moving, neutrino-like dark particles could have decoupled from ...

Astronomers have observed a pair of stars locked in a death spiral, and their dance of doom is revealing more about how gravity works. The system, called ZTF J2130, sits about 4,000 light-years away.

Clocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly ...

This is in line with calculations based on our current theoretical understanding of gravity. But scientists have been eager to move past Einstein's theory of general relativity for more than a century ...

Canadian Business Aviation Association and Airlines for America see senior leadership transitions while the industry mourns loss of Sergei Sikorsky ...

New York City drivers are bracing for two weeks of congested streets as world leaders flock to the east side of Manhattan for the 79th United Nations General Assembly. The gathering runs from Tuesday, ...