1 00:00:08,710 --> 00:00:06,950 my name is angelus vulidas and i'm the 2 00:00:11,270 --> 00:00:08,720 project scientist for the shaky 3 00:00:13,430 --> 00:00:11,280 instrument suite on stereo a coronal 4 00:00:15,030 --> 00:00:13,440 mass ejection is an explosion of the 5 00:00:17,269 --> 00:00:15,040 sun's atmosphere that propagates in 6 00:00:19,429 --> 00:00:17,279 space in the form of a cloud 7 00:00:22,390 --> 00:00:19,439 they can really disrupt satellite 8 00:00:25,109 --> 00:00:22,400 communications they can affect gps 9 00:00:27,830 --> 00:00:25,119 signals or cell phones and even cause 10 00:00:30,550 --> 00:00:27,840 electricity disruptions 11 00:00:33,190 --> 00:00:30,560 so the stereo satellites 12 00:00:34,790 --> 00:00:33,200 is a mission specifically to study the 13 00:00:36,630 --> 00:00:34,800 quantum mass ejections using two 14 00:00:38,630 --> 00:00:36,640 identical spacecraft so we can 15 00:00:41,270 --> 00:00:38,640 reconstruct the three-dimensional 16 00:00:43,830 --> 00:00:41,280 structure of these clouds the use of a 17 00:00:46,790 --> 00:00:43,840 single spacecraft is similar to seeing 18 00:00:49,190 --> 00:00:46,800 the wall with one eye you suddenly lack 19 00:00:50,869 --> 00:00:49,200 perception of depth and we never know if 20 00:00:54,069 --> 00:00:50,879 the object for example is coming towards 21 00:00:56,950 --> 00:00:54,079 us going away from us by injecting the 22 00:00:58,790 --> 00:00:56,960 second viewpoint then suddenly you run 23 00:01:01,270 --> 00:00:58,800 out of solutions and you you have a very 24 00:01:04,869 --> 00:01:01,280 limited number of models to choose from 25 00:01:07,910 --> 00:01:04,879 so this uh the shape of cme seems to to 26 00:01:10,310 --> 00:01:07,920 be similar to a french croissant only 27 00:01:12,070 --> 00:01:10,320 instead of be comprised of 28 00:01:13,109 --> 00:01:12,080 pastries comprised of magnetic field 29 00:01:14,950 --> 00:01:13,119 lines 30 00:01:16,630 --> 00:01:14,960 we basically have moved 31 00:01:19,030 --> 00:01:16,640 halfway towards 32 00:01:20,310 --> 00:01:19,040 the solving solving the problem at least 33 00:01:23,350 --> 00:01:20,320 in a practical 34 00:01:25,429 --> 00:01:23,360 manner by modeling and getting a ground 35 00:01:28,310 --> 00:01:25,439 truth on the shape and the energy on the 36 00:01:30,069 --> 00:01:28,320 cme can make better predictions of when