Scientists inventing invisible stuff to save their theories is the ULTIMATE cosmic cover-up! 🔍 On the left, 19th century astronomers noticed Mercury's orbit was wonky, so rather than question Newton's gravity, they invented a phantom planet called "Vulcan" hiding between Mercury and the Sun. Spoiler alert: it didn't exist! Fast forward to today, and we're doing the SAME THING with dark matter! "Hmm, galaxies spin too fast for our calculations... quick, invent invisible mass that we can't detect directly!" The parallel is deliciously ironic - we'd rather conjure invisible matter than admit our physics heroes might need some tweaking. Science: where we make up stuff to avoid admitting we're wrong! *maniacal scientist laugh*