For over a century, quantum mechanics and Einstein’s general relativity have stood as the cornerstones of modern physics, yet ...

The grandfather paradox is just one of the thorny logical problems that arise with the concept of time travel. But one physicist says he has resolved them.

The accelerating expansion of the Universe, first observed in 1998, remains one of the most profound mysteries in modern ...

Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of what the universe looked like in the moments before it rapidly changed ...

NASA's James Webb Space Telescope has captured a unique image that revealed 44 individual stars in a galaxy 6.5 billion light ...

but acting more like Albert Einstein predicted in his 1915 general theory of relativity. Cosmologists since 1998 have theorized that a mysterious invisible force dubbed dark energy was pushing the ...

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.

TEGO revolutionizes gravitational wave detection with its tetrahedral spacecraft formation, improving sensitivity and ...

Most climate scientists agree the world is experiencing a climate crisis. Monte Heil (Daily Bee, Jan. 21, 2025) opines, “If it isn't a crisis for you, then for you it isn't a crisis.” How is that ...