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The prevailing assumption has been that Einstein's theory of gravity must be modified, or 'quantized', in order to fit within quantum theory. This is the approach of two leading candidates for a ...

The search for quantum gravity is the next big step in physics, as researchers seek to unify the physics of the very small ...

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All fundamental forces operating on astronomical scales exhibit a decrease in strength with increasing distance. A hypothetical force, decreasing with distance slower than the inverse square law, ...

Comments: to appear in proceedings of “Astrophysics Enabled by the Return to the Moon” STScI 11/28-30/06 The lunar surface has historically been considered an optimal site for a broad range of ...

No experiment has yet measured the speed of gravity, but that hasn’t prevented theorists from coming up with some answers. According to Newton, gravity acts instantly — that is, “action at a distance” ...

Does dark matter follow the same laws as ordinary matter? The mystery of this invisible and hypothetical component of our ...

As New Horizons passed Pluto in July 2015, did the dwarf planet alter the probe's trajectory? Douglas KaupaCouncil Bluffs, ...

Related: Tightly Orbiting Binary Stars Are So Close They Could Both Fit Inside the Sun A scientist claims to have discovered a “gravitational anomaly” that calls into question our fundamental ...