{"shapes": [{"geometry": {"y": 0.15, "x": 0.8333333333333334, "width": 0.1266666666666666, "height": 0.07}, "type": "rect"}], "src": "http://res.cloudinary.com/sciencedaily/image/fetch/w_150,h_100,c_fill,q_75,fl_progressive,f_auto/http://cdn.newslook.com/0c/0cc28322f59e64f60ad4c181565f127f/images/frame_0023.jpg", "editable": false, "context": "http://app.swtr.us/", "text": "\nBlack hole\n\nA black hole is a concentration of mass great enough that the force of gravity prevents anything from escaping it except through quantum tunnelling behaviour (known as Hawking Radiation).\n\nThe gravitational field is so strong that the escape velocity near it exceeds the speed of light.\n\nThis implies that nothing, not even light, can escape its gravity.\n\nThis makes this object invisible to the rest of the universe, hence the word \"black\"\n - by Amrapali"}