The so-called water hole is a range in the electromagnetic spectrum in which searches for transmissions of extraterrestrial origin are being conducted.In what region of the electromagnetic spectrum does the water hole occur?

Question

Quizplus · Accepted Answer

The water hole occurs in the microwave region of the electromagnetic spectrum, specifically in the range of frequencies around 1.42 GHz. This frequency is important because it lies between two naturally occurring radio emissions - hydrogen's spin-flip transition and hydroxyl's spin-rotation transition - which makes it a potentially good location for extraterrestrial civilizations to communicate. Hence, it is being targeted for SETI (Search for Extraterrestrial Intelligence) searches.

The So-Called Water Hole Is a Range in the Electromagnetic