Significats de gravitational lens en anglès

I'd say it has to be a gravitational lens, an incredibly dense mass.

That we might have a gravitational lens of our very own, nearby and available.

Furthermore, NASA explains that the "immense gravity in Abell 2744 acts as a gravitational lens to warp space".

Astronomers spotted the dwarf star because it acted as a gravitational lens, focusing light from a blue background star in another galaxy.

This natural " gravitational lens" effect essentially magnified the distant light by nearly 10 times, making it bright enough for Spitzer and Hubble to detect.

Using the Sun as a Gravitational Lens.