1 00:00:16,630 --> 00:00:14,150 earlier this year a powerful volcano in 2 00:00:19,189 --> 00:00:16,640 iceland erupted and caused havoc with 3 00:00:21,269 --> 00:00:19,199 air traffic around europe 4 00:00:24,150 --> 00:00:21,279 elsewhere in the universe a similar 5 00:00:26,630 --> 00:00:24,160 galactic super volcano has been erupting 6 00:00:29,189 --> 00:00:26,640 for millions of years 7 00:00:31,269 --> 00:00:29,199 this composite image from nasa's chandra 8 00:00:33,510 --> 00:00:31,279 x-ray observatory 9 00:00:34,950 --> 00:00:33,520 with radio data from the very large 10 00:00:37,350 --> 00:00:34,960 array 11 00:00:39,990 --> 00:00:37,360 shows a cosmic volcano being driven by a 12 00:00:42,950 --> 00:00:40,000 black hole in the center of the m-87 13 00:00:47,350 --> 00:00:45,190 this eruption is pumping energy into the 14 00:00:49,350 --> 00:00:47,360 black hole's surroundings and preventing 15 00:00:52,069 --> 00:00:49,360 hundreds of millions of new stars from 16 00:00:53,830 --> 00:00:52,079 forming just as the volcano in iceland 17 00:00:56,310 --> 00:00:53,840 caused disruptions in the earth's 18 00:00:58,389 --> 00:00:56,320 atmosphere 19 00:01:01,430 --> 00:00:58,399 the comparison between the black hole in 20 00:01:03,830 --> 00:01:01,440 m87 and the volcano in iceland shows 21 00:01:06,149 --> 00:01:03,840 that even though astronomical phenomena 22 00:01:08,789 --> 00:01:06,159 occur in exotic settings and over huge