1 00:00:05,670 --> 00:00:03,590 what's up for september this month we'll 2 00:00:08,230 --> 00:00:05,680 step away from the city lights and gaze 3 00:00:10,470 --> 00:00:08,240 up at our own milky way galaxy 4 00:00:12,709 --> 00:00:10,480 hello i'm jane houston jones from nasa's 5 00:00:14,789 --> 00:00:12,719 jet propulsion laboratory in pasadena 6 00:00:16,870 --> 00:00:14,799 california 7 00:00:19,109 --> 00:00:16,880 you can easily spot the moon and the 8 00:00:21,670 --> 00:00:19,119 planets from your own backyard but it 9 00:00:24,550 --> 00:00:21,680 takes a dark sky to see the spiral arms 10 00:00:26,470 --> 00:00:24,560 of our own galaxy 11 00:00:29,589 --> 00:00:26,480 one of the main features of spiral 12 00:00:31,830 --> 00:00:29,599 galaxies are spiral arms and dark lanes 13 00:00:34,310 --> 00:00:31,840 of dust and gas which line the edge of 14 00:00:36,150 --> 00:00:34,320 those spiral arms 15 00:00:38,630 --> 00:00:36,160 just to the right of jupiter you'll see 16 00:00:40,950 --> 00:00:38,640 what looks like a cloud but it's really 17 00:00:42,790 --> 00:00:40,960 a cloud of stars and it's the center of 18 00:00:44,869 --> 00:00:42,800 our milky way galaxy 19 00:00:46,470 --> 00:00:44,879 we live two-thirds of the way from the 20 00:00:47,990 --> 00:00:46,480 center 21 00:00:51,029 --> 00:00:48,000 when you look at the spiral arm of the 22 00:00:53,350 --> 00:00:51,039 galaxy you'll notice a dark area 23 00:00:55,830 --> 00:00:53,360 bisecting the stars 24 00:00:58,869 --> 00:00:55,840 that dark area is called the great rift 25 00:01:01,270 --> 00:00:58,879 of our milky way galaxy what it is is 26 00:01:02,630 --> 00:01:01,280 dark obscuring dust that's blocking the 27 00:01:04,310 --> 00:01:02,640 starlight 28 00:01:06,149 --> 00:01:04,320 you don't need a telescope to see the 29 00:01:08,950 --> 00:01:06,159 milky way but if you do look through a 30 00:01:11,510 --> 00:01:08,960 telescope you'll see clumps of stars 31 00:01:13,670 --> 00:01:11,520 star clusters and nebula in much more 32 00:01:15,109 --> 00:01:13,680 detail although with your own eyes 33 00:01:17,590 --> 00:01:15,119 you'll be able to see some of the 34 00:01:19,910 --> 00:01:17,600 features of the milky way galaxy such as 35 00:01:22,149 --> 00:01:19,920 some of the brighter clusters and gas 36 00:01:23,990 --> 00:01:22,159 clouds