As the Moon moves closer to the space phenomenon, the instruments begin detecting electrical activity resembling the lambda waves produced in the human brain.

Scholars began detecting the religious allegories in the plays during the 1930s.

It bases this judgement on the fact that affected pages had been online for months or years before its anti-virus software began detecting threats.

Paul Diaz, the manager of a Bronx supermarket, began detecting the strange $1 bills last Monday.

The Allies soon began detecting signs of preparations for a new convoy.

Further examples of gregarious behavior will need to be discovered from more sauropod species to begin detecting possible patterns of distribution.

Flurry said its systems began detecting a new class of device last October.

About 30 years ago Defense Department satellites monitoring compliance with the nuclear test-ban treaty began detecting the intense flashes of radiation.

Voyager 1, now 4.9 billion miles out from Earth, began detecting intense low-frequency radio emissions last August.

Voyager 1 and 2 began detecting evidence for the bubbles in 2007 and 2008, respectively.