gravitational lensing (English, noun)
expansion: gravitational lensing (uncountable)
Senses:
topics: astronomy
natural-sciences
glosses: The action of a highly-massive object (such as a star, galaxy, or black hole) that acts as a gravitational lens and focuses light from a light source (such as another star or galaxy) that passes behind it as observed from the Earth.
tags: uncountable
Forms: