WEBVTT FILE 1 00:00:00.000 --> 00:00:04.010 tone 2 00:00:04.030 --> 00:00:08.040 Hi, this is Leila Mays. I'm a research scientist at Goddard. 3 00:00:08.060 --> 00:00:12.100 You are viewing a solar wind simulation called ENLIL from Dr. Dusan Odstricil. 4 00:00:12.120 --> 00:00:16.140 You can think of this as weather map for the solar system. 5 00:00:16.160 --> 00:00:20.170 This simulation provides solar wind predictions at Pluto for the New Horizons fly by. 6 00:00:20.190 --> 00:00:24.180 New Horizons' trajectory is the white line starting from near the Earth 7 00:00:24.200 --> 00:00:28.230 when it launched in 2006, and it has taken 9.5 years to reach pluto in 2015. 8 00:00:28.250 --> 00:00:32.260 The sun is at the center, and we are viewing the plane of the planets 9 00:00:32.280 --> 00:00:36.310 from above as we are zooming out of the inner solar system. 10 00:00:36.330 --> 00:00:40.380 The planets are labeled as circles and spacecraft by squares. 11 00:00:40.400 --> 00:00:44.420 The color is showing the density of particles in the solar wind, which are always streaming out of the sun. 12 00:00:44.440 --> 00:00:48.440 And near the Earth, the solar wind speed is around 1 million miles per hour. 13 00:00:48.460 --> 00:00:52.460 You can see that the solar wind structures maintain their shape at large distances. 14 00:00:52.480 --> 00:00:56.490 The black outlines you see are Coronal Mass Ejections from the sun, 15 00:00:56.510 --> 00:01:00.510 which expand and elongate as they flow out. You can see them being 16 00:01:00.530 --> 00:01:04.510 captured by the solar wind structures and merge to form 17 00:01:04.530 --> 00:01:08.550 Global Merged Interaction Regions which the New Horizons spacecraft can observe as enhancements. 18 00:01:08.570 --> 00:01:12.570 Coronal mass ejections can take about 5 months to reach Pluto 19 00:01:12.590 --> 00:01:16.610 so this simulation begins 6 months ago and includes information 20 00:01:16.630 --> 00:01:20.650 about over 100 coronal mass ejections. Now we start to 21 00:01:20.670 --> 00:01:24.670 in on Pluto before the time of the New Horizons fly by 22 00:01:24.690 --> 00:01:28.710 closest approach in mid-July. 23 00:01:28.730 --> 00:01:38.412 beeping