NASA is sending glow-in-the-dark baby squid and water bears to the International Space Station today

Hundreds of baby squid and microscopic organisms are headed to space aboard a SpaceX rocket to the International Space Station on Thursday. The tiny creatures are part of a cargo resupply mission. 

The rocket is expected to launch today from NASA's Kennedy Space Center in Florida — and there won't be any humans aboard the Dragon cargo capsule. It marks SpaceX's 22nd commercial resupply mission to space.  The creatures will be part of experiments abroad, which include studying how water bears handle space, the possible effects of microgravity on symbiotic relationships, analyzing the formation of kidney stones and more.