On December 11, 2015, Hubble captured an image of the first-ever predicted reappearance of a supernova, dubbed “Refsdal”, which was calculated using different mass models of a galaxy cluster whose gravity is warping the supernova’s light. The supernova was previously seen in November 2014 ...
What produces a type 1 supernova? At normal temperatures, if a blue body is heated then it absorbs red the same as yellow absorbs blue. What is the main reason for this type of absorption? What is the distinction between a nebula and a galaxy? What event signals the end of ...
For all we know, the Questioner and the juggler are transcendently something else — a star moving in orbit around a black hole. Once upon a time, two stars were keeping each other company. The acrobat, catapulted into a higher dimension, reveals only its shadow on a flat surface while ...