The European Space Agency has launched two atomic clocks on a SpaceX rocket to the ISS to test Einstein's theory of ...

The European Space Agency (ESA) has launched ACES, or the Atomic Clock Ensemble in Space, to the International Space Station ...

The European Space Agency (ESA) has launched one of its most precise science experiments to date — the Atomic Clock Ensemble ...

Einstein’s general theory of relativity can be summed up in just 12 words: “Space-time tells matter how to move; matter tells space-time how to curve”. But this short description from the ...

Einstein's theory of general relativity states that objects with mass curve the very fabric of space-time (the three dimensions of space united with the one dimension of time), and gravity arises ...

Physicists have taken a bold step beyond Einstein's special theory of relativity, proposing an expansion of special relativity that includes observers moving faster than light. This fresh perspective ...

IT is often thought that the theory of curved space-time (general relativity theory) accounts for gravitation but does not account for the electromagnetic phenomena. This is not so.

In general relativity, Einstein shows that matter and energy—all the "stuff" in the universe—actually mold the shape of space and the flow of time. What we feel as the "force" of gravity is ...

On 25 November 1915, Albert Einstein presented his general theory of relativity at the Prussian Academy of Sciences. This theory is still considered to be the most important idea in modern physics.

Relativity Space announced it has begun production on the Terran R rocket aiming for a late 2026 launch from Cape Canaveral while also switching up CEOs.