Forget Newton's apple, scientists drop one atom to test gravity theory - The Times

Theory Briefing

• Researchers used a single falling atom as their test subject, pushing gravity experiments to the smallest scale ever attempted.
• Einstein's general relativity and quantum mechanics have long resisted unification — this experiment probes exactly where they might conflict.
• A confirmed mismatch between quantum behavior and Einstein's predictions would force a rewrite of fundamental physics.
• The breakthrough is framed as a potential bridge between the two pillars of modern science, neither of which alone explains everything.