Radioactive, chemical or biological substances are undetectable to humans in threatening situations and difficult to detect with remote sensing. Researchers at the Fraunhofer Institute for ...

Chemical, biological, radiological, nuclear and explosive substances (CBRNE substances for short) can pose a threat to the ...

The acquisition and expression of Pavlovian conditioned responding are shown to be lawfully related to objectively specifiable temporal properties of the events the animal is learning about.

Most near-Earth asteroids are thought to drift in from the main asteroid belt. But a small subset may have a much closer origin: the moon. One intriguing example is 469219 Kamoʻoalewa (2016 HO3), an ...