What is another word for strong lens?
Pronunciation: [stɹˈɒŋ lˈɛnz] (IPA) 
The term "strong lens" refers to a phenomenon in astronomy where the gravitational field of a massive object, such as a galaxy or cluster of galaxies, bends and distorts the path of light from more distant objects behind it. This phenomenon is also referred to as gravitational lensing, gravitational microlensing, and strong gravitational lensing. In addition, the term "lensing" may be used as a synonym for "strong lens," and the effect itself may be referred to as "cosmic magnifying glass" or "cosmic telescopic lens." Strong lensing has proven to be a valuable tool for studying distant objects in the universe and for testing theories of gravity and dark matter.
