Whether gravity is a force or the curvature of spacetime is immaterial because both explanations are experimentally identical.
“So, to say, is gravity a force or is it just the curvature of space and time, I'm saying that distinction is immaterial.”
StarTalk · Jan 2026 · 4 episodes · 4.0M views on this topicGeneral relativity is a more accurate description of gravity than Newtonian theory in extreme environments like black holes where subtle differences in space-time curvature matter.
“it matters because when we are trying to understand these extreme situations such as a black hole or the beginning of the universe, there are subtle differences that do come into account and you have to take them into account in order to get the science right.”
StarTalk · Jun 2025 · 1 episode · 1.3M views on this topicHannah Fry defines gravity as the mutual attraction between objects possessing mass.
“if you without any any interfering from outside, if you just have two objects near each other, they will come together. That's it. I mean, that's it really.”
The Rest Is Science · Nov 2025 · 1 episode · 908K views on this topicExtracted by a model; may misattribute who said what.
Complete months · first on record Jun 2024