Camera spots hidden oil spills and may find missing planes

New Scientist 

There are thousands of oil spills each year in US waters alone. One major source is illegal dumping of oil in harbours when ships empty their bilges, typically at night to avoid detection. However, a new kind of polarising camera can now spot offenders immediately. Its ability to detect otherwise invisible oil sheens could even lead investigators to lost planes. Like many oil imagers, the Pyxis camera sees the infrared radiation emitted by all objects.