Post by ET_Explorer on Jan 18, 2016 12:14:26 GMT
This group of galaxies has been nicknamed the "Cheshire Cat" because of its resemblance to a smiling feline.
Some of the cat-like features are actually distant galaxies whose light has been stretched and bent by the large amounts of mass contained in foreground galaxies.
This is an effect called "gravitational lensing". A key result of Einstein's theory is that matter warps space-time, and thus a massive object can cause an observable bending of light from a background object.
Source SIMBAD Gravitational lensing
CHESHIRE CAT -- Cluster of Galaxies of Cons....kmz (1.12 KB)
Some of the cat-like features are actually distant galaxies whose light has been stretched and bent by the large amounts of mass contained in foreground galaxies.
This is an effect called "gravitational lensing". A key result of Einstein's theory is that matter warps space-time, and thus a massive object can cause an observable bending of light from a background object.
Source SIMBAD Gravitational lensing
CHESHIRE CAT -- Cluster of Galaxies of Cons....kmz (1.12 KB)