An experiment with a charged molecule of bismuth and carbon reveals how effects from Albert Einstein’s special relativity ...

NASA has selected Relativity Space to fly a dedicated planetary-science mission to Mars, the first time a privately developed rocket has been assigned to carry a full NASA science payload rather than ...

The new space race is accelerating, but debris, failures, and crowded orbits are raising new risks around Earth.

The question of how gravity interacts with the quantum world has long perplexed physicists, but a non-quantum theory of space ...

Space Force officials have tapped two startup companies to compete for future national security launch missions, expanding ...

NASA is teaming up with former Google CEO Eric Schmidt’s Relativity Space to expand its Mars monitoring capabilities. The space agency announced on Wednesday that the private space company will ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Albert Einstein's theory of general relativity—which explains gravity ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Two cutting-edge atomic clocks — the most accurate ever ...

Impulse Space and Relativity Federal join Blue Origin, SpaceX and United Launch Alliance on the NSSL Phase 3 Lane 1 contract.