snorkeler holds an urchin in one hand and scissors in the other

A diver collects a long-spined sea urchin. Credit: Blake Gardner  

Our employee owners were recently part of a team of detectives on a mission to discover the killer of long-spined sea urchins, Diadema antillarumy, throughout the Caribbean Sea. The infected urchins lose their spines, leaving them more vulnerable to predation or dying after a few days. In 1983 the same species experienced mass mortality with identical symptoms, but scientists were unable to discover the culprit. Forty years later, the issue resurfaced, and a team of scientists joined forces to unlock the mystery.

CSS employee owners, supporting NOAA’s Coral Reef Conservation Program and NOAA’s Office for Coastal Management, joined a team of scientists in diving to collect urchin samples at 23 sites around the Caribbean Sea. By providing the samples, the researchers were then able to examine and test the urchins and compare them to healthy urchins to determine the cause of the mortality. 

Due to this rapid response, scientists determined the cause of the issue within three months  

Our staff coauthored this paper documenting the process. https://www.science.org/doi/10.1126/sciadv.adg3200

A long-spined urchin cut in half. Two gloved hands hold each half exposing the internal structure.

Researchers examine a long-spined sea urchin. Credit: Leslie Henderson

See More CSS Insights

Studying Mesophotic Coral Health

Mesophotic coral can live at depths of 500 feet below the ocean surface. Even at this depth, some of the mesophotic corals in the Gulf of Mexico were affected by the Deepwater Horizon oil spill in 2010. Our coral scientists supporting NOAA’s National Centers for Coastal Ocean Science are studying the extent of this impact.…

NG-23 rocket launched

Preparing and Delivering Samples for Travel to the International Space Station

CSS employee owners on contract with NASA delivered six newly prepared Solidification Using a Baffle in Sealed Ampoules (SUBSA)—a high temperature furnace with temperature and timing control for melting samples to create different materials and alloys—samples for the NG-23 launch, which took place on September 14, 2025. On this mission, samples are being delivered for…

Gold ribbon over text that reads announcement

New Award with University of Pittsburg 

CSS has recently acquired a new award working with the University of Pittsburg. As part of this work, a team of CSS employee owners has begun testing samples for Solidification Using a Baffle in Sealed Ampoules (SUBSA), a high temperature furnace with temperature and timing control for melting samples to create different materials and alloys.…