1 00:00:09,110 --> 00:00:07,349 my name is angelus vulidas and i'm the 2 00:00:11,669 --> 00:00:09,120 project scientist for the shaky 3 00:00:13,830 --> 00:00:11,679 instrument suite on stereo a coronal 4 00:00:15,430 --> 00:00:13,840 mass ejection is an explosion of the 5 00:00:17,670 --> 00:00:15,440 sun's atmosphere that propagates in 6 00:00:19,830 --> 00:00:17,680 space in the form of a cloud 7 00:00:22,790 --> 00:00:19,840 they can really disrupt satellite 8 00:00:25,509 --> 00:00:22,800 communications they can affect gps 9 00:00:28,230 --> 00:00:25,519 signals or cell phones and even cause 10 00:00:30,950 --> 00:00:28,240 electricity disruptions 11 00:00:33,590 --> 00:00:30,960 so the stereo satellites 12 00:00:35,190 --> 00:00:33,600 is a mission specifically to study the 13 00:00:37,030 --> 00:00:35,200 quantum mass injections using two 14 00:00:39,030 --> 00:00:37,040 identical spacecraft so we can 15 00:00:41,670 --> 00:00:39,040 reconstruct the three-dimensional 16 00:00:44,229 --> 00:00:41,680 structure of these clouds the use of a 17 00:00:46,950 --> 00:00:44,239 single spacecraft is similar to seeing 18 00:00:49,190 --> 00:00:46,960 the wall with one eye you suddenly 19 00:00:50,869 --> 00:00:49,200 lack perception of depth and we never 20 00:00:53,670 --> 00:00:50,879 know if the object for example is coming 21 00:00:55,750 --> 00:00:53,680 towards us going away from us by 22 00:00:58,389 --> 00:00:55,760 injecting the second viewpoint then 23 00:00:59,910 --> 00:00:58,399 suddenly you run out of solutions and 24 00:01:01,750 --> 00:00:59,920 you you have a very limited number of 25 00:01:05,270 --> 00:01:01,760 models to choose from 26 00:01:08,310 --> 00:01:05,280 so this uh the shape of cme seems to to 27 00:01:10,710 --> 00:01:08,320 be similar to a french croissant only 28 00:01:12,469 --> 00:01:10,720 instead of be comprised of 29 00:01:13,510 --> 00:01:12,479 pastries comprised of magnetic field 30 00:01:15,350 --> 00:01:13,520 lines 31 00:01:17,030 --> 00:01:15,360 we basically have moved 32 00:01:19,429 --> 00:01:17,040 halfway towards 33 00:01:20,710 --> 00:01:19,439 the solving solving the problem at least 34 00:01:23,749 --> 00:01:20,720 in a practical 35 00:01:25,830 --> 00:01:23,759 manner by modeling and getting a ground 36 00:01:28,710 --> 00:01:25,840 truth on the shape and the energy on the 37 00:01:30,550 --> 00:01:28,720 cme can make better predictions of when