Several recent studies have shown that velocity differences of very wide binary stars. measured to high precision with GAIA. can potentially provide an interesting test for modified-gravity theories which attempt to emulate dark matter; in essence. MOND-like theories (with external field effect included) predict that wide binaries (wider than $\sim 7$ kAU) should orbit $\sim 15\%$ fas... https://macorners.shop/product-category/shimmer-glass-can/