NASA released a photo of a group of galaxies that look like a smiling cat celebrating the 100th anniversary of Albert Einstein’s Theory of General Relativity.
The light of those galaxies is being stretched, according to NASA. The effect is called “gravitational lensing,” a phenomenon predicted the Theory of General Relativity. According to NASA, the galaxies making the cat’s eyes are actually slamming into one another in a giant galactic collision.
It was first published in November of 1915.