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Gravitational lensing
Meaning
Noun
●
In Astronomy & Relativity:
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.
Sourced from
Wiktionary
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