Einstein's theory of gravity and quantum physics are expected to merge at the Planck-scale of extremely high energies and on very short distances. Now scientists have proposed a new quantum experiment ...

Using a state-of-the-art device for measuring mass, researchers have made their most precise determination yet of Planck's constant, an important value in science that will help to redefine the ...

While various studies have hinted at the existence of dark matter, its nature, composition and underlying physics remain poorly understood. In recent years, physicists have been theorizing about and ...

Planck photon rocket drives --- which in theory could hit velocities equal to 99.999 percent the speed of light --- might eventually offer propulsion engineers a way to drastically reduce interstellar ...