“Laser pointer + cat = science”
To test a state-of-the-art laser communication system, NASA did what anyone would do — it sent a high-definition cat video 31 million kilometers (19 million miles) through space. The Psyche spacecraft, which is on its way to the asteroid of the same name, used its laser transceiver to send back to Earth a 15-second video of an orange tabby named Taters chasing a laser (fittingly). The test, while undeniably whimsical, was also a successful demonstration of higher-data-rate communications that will be needed to support complex missions such as sending humans to Mars.
https://www.planetary.org/the-downlink/laser-pointer-cat-science