Use code sabine at https://incogni.com/sabine to get an exclusive 60% off an annual Incogni plan. Over the years, astrophysicists have made many observations that they can’t explain with normal gravity and normal matter combined. Most physicists explain these differences between observation and prediction with dark matter. However, some believe that modified Newtonian dynamics (MOND for short) – which modifies the laws of gravity – is an alternative explanation. While that theory was supposedly