NASA’s Hubble Telescope Finds a Green Cosmic Arc
NASA on Sunday tweeted a remarkable image of a galaxy cluster about 7.5 billion light-years from Earth.
A green cosmic arc was found in the image.
According to NASA, a galaxy is so massive that it can warp the fabric of space-time.
“The mass contained within a galaxy is so immense that it can actually warp and bend the very fabric of its surroundings (known as space-time), forcing light to travel along curved paths. As a result, the image of a more distant galaxy appears distorted and amplified to an observer, as the light from it has been bent around the intervening galaxy,” the space agency said.