A remarkable yet mysterious property of black holes is that their entropy is proportional to the horizon area. This area law inspired the holographic principle, which was later realized concretely in ...

Filmmakers have played with gravity for long time, from Fred Astaire’s 1951 ceiling dance to the ill-fated space mission of Apollo 13 to Joseph Gordon-Levitt’s hallway fight in Inception. But when ...

Evidence pointing toward the existence of an undiscovered ninth planet in the solar system may actually indicate our ideas of gravity are incorrect. Such is the conclusion of two scientists who ...

The gravity of an alien star is causing its planet to unwind, research now reveals. The world in question is WASP-12b, the only known planet circling the yellow sun-like star WASP-12 some 867 ...

Astronomers suggest that an alternative concept of gravity, known as modified Newtonian dynamics, could explain orbital inconsistencies that have previously pointed to the existence of a ninth planet ...

The external, harmonic, gravitational potential of a body can be expanded into a series of complex spherical harmonic functions Y lm (θ,?ϕ) (an orthonormal basis for functions defined on the unit ...

A theory developed to replace dark matter may mean bad news for Planet Nine, a hypothetical as-yet-unseen world in the outer solar system. The odd orbital alignments of icy objects in this region that ...

Could data pointing toward a mysterious planet at the edge of the solar system actually suggest it's time to revisit our theory of gravity? When you purchase through links on our site, we may earn an ...