Skin is the body’s largest organ, making up about 16% of your body weight—and it’s constantly renewing itself. You shed nearly a million skin cells every day.
A proposed array of 200 small telescopes could detect Planet Nine by observing stellar occultations. Spaced across 1,000 km, they’d map Trans-Neptunian Objects and potentially confirm a planet or primordial black hole in the solar system’s outer reac
