Objects with mass attract one another gravitationally.
Gravity produces attraction between masses in ordinary conditions; its effects can be measured and predicted.
Show me why
Newtonian gravity relates attraction to mass and distance. It works very well for many everyday and orbital calculations. General relativity gives a deeper account involving spacetime and is needed in regimes where Newton’s approximation is insufficient.
A common misconception
Weightlessness in orbit does not mean gravity has vanished.
Where the limits are
This short statement is not a complete description of gravity in cosmology or quantum physics.
How we know
NASA’s mechanics guide explains mutual attraction and orbital motion. The forces overview introduces the relativistic picture. The claim describes an observed relationship; it does not assert that Newtonian gravity is the final theory in every regime.
What would change this conclusion?
Reproducible measurements could require a revised theory, but it would still need to reproduce the well-tested attraction observed in ordinary conditions.
Sources you can inspect
- NASAChapter 3: Gravity & Mechanics
Explains mutual attraction.
Publication date not stated · Checked in initial research 2026-10-08 - NASAForces
Describes the spacetime account of gravitation.
Publication date not stated · Checked in initial research 2026-10-08
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Revision history
- Initial AI-assisted source research and scoped explanation. Awaiting owner editorial approval; not publicly verified.
- Owner explicitly approved all content as created for public publication. Statements, sources and evidence classifications unchanged.