National Geographic Animals on Instagram: "While a cheetah can sprint close to 70 miles (110 km) per hour, it can only do so in short bursts—meaning that once the chase begins, it all comes down to speed and timing. #CheetahsUpClose with @bertiegregory premieres Thursday, Jan 1 at 9/8c on National Geographic. Streaming on @DisneyPlus and @hulu."

Galaxies on Instagram: "Laika was the little stray from Moscow who became the first living creature to orbit Earth in 1957. She never came home, but her journey marked the moment our species truly began leaving the planet. A tiny dog in a metal capsule, circling a world that barely knew her name — reminding us that every great leap forward is paid for with courage, wonder, and heartbreaking sacrifice."