A new study based on long-term monitoring data demonstrates significant differences in growth between nurse sharks off the coast of Miami and those living just across the Gulf Stream.

After maritime shipping emissions were sharply reduced following a mandated switch in fuels, University of Utah atmospheric scientists sprang into action to see how the change would affect cloud formation over North Atlantic. Review of satellite observations and weather data determined few droplets formed, yet the clouds’ ability to reflect sunlight remained surprisingly stable.

Researchers at the University of Rochester’s Institute of Optics have developed a new process that turns ordinary metal tubes unsinkable—meaning they will stay afloat no matter how long they are forced into water or how heavily they are damaged. The researchers describe their process for creating aluminum tubes with remarkable floating abilities in a study published in Advanced Functional Materials. By etching the interior of aluminum tubes, the researchers create micro- and nano-pits on the surface that turn it superhydrophobic, repelling water and staying dry.