1 00:00:00,020 --> 00:00:04,020 [slate] 2 00:00:04,040 --> 00:00:08,040 [slate] 3 00:00:08,060 --> 00:00:12,120 4 00:00:12,140 --> 00:00:16,210 Well Jupiter is going to be very bright tonight and for the next 5 00:00:16,230 --> 00:00:20,370 several nights. As it rises in the east you'll be able to 6 00:00:20,390 --> 00:00:24,460 see it in the Virgo constellation. It will rise; it'll be 7 00:00:24,480 --> 00:00:28,500 up all night. The reason it's such a great time to see Jupiter is because 8 00:00:28,520 --> 00:00:32,560 it's at a position in its orbit we call opposition, which means it's on the 9 00:00:32,580 --> 00:00:36,690 opposite side of the Earth from the Sun, which means it's relatively close to the Earth 10 00:00:36,710 --> 00:00:40,880 in its orbit. Which makes it appear relatively bright 11 00:00:40,900 --> 00:00:44,910 and big in the night sky. So it's a wonderful time to take a glimpse at Jupiter. 12 00:00:44,930 --> 00:00:48,930 [slate] 13 00:00:48,950 --> 00:00:52,980 Well we've taken advantage of the fact that Jupiter 14 00:00:53,000 --> 00:00:57,070 is relatively close to the Earth to use the Hubble Space 15 00:00:57,090 --> 00:01:01,200 Telescope to take a nice, new snapshot. So this beautiful image from Hubble 16 00:01:01,220 --> 00:01:05,390 shows great detail of Jupiter's atmosphere. 17 00:01:05,410 --> 00:01:09,440 You can see these gorgeous atmospheric bands, different colors. 18 00:01:09,460 --> 00:01:13,530 They represent the different parts of the atmosphere, sometimes 19 00:01:13,550 --> 00:01:17,610 moving at different velocities around the planet. You can also see features 20 00:01:17,630 --> 00:01:21,720 of storms on Jupiter. That famous Great Red Spot. 21 00:01:21,740 --> 00:01:25,790 which is bigger than two Earths that could fit inside. Whirling around 22 00:01:25,810 --> 00:01:29,860 but there are other storms cropping. You can see some little white ovals 23 00:01:29,880 --> 00:01:33,990 there are other storms cropping up as well. So Jupiter as we're learning 24 00:01:34,010 --> 00:01:38,150 is a very dynamic planet. Lots of action, lots of changes over 25 00:01:38,170 --> 00:01:42,210 time. You know we're also looking at Jupiter with other kinds of 26 00:01:42,230 --> 00:01:46,310 instruments and telescopes. We've used the Hubble to look at the poles 27 00:01:46,330 --> 00:01:50,420 of Jupiter and see the auroras. Jupiter 28 00:01:50,440 --> 00:01:54,560 has powerful auroras just like Earth has the northern lights. 29 00:01:54,580 --> 00:01:58,600 Well Jupiter's are even stronger. Jupiter has a strong magnetic field, which 30 00:01:58,620 --> 00:02:02,660 feeds that activity. And in ultraviolet light, we've been able to see these auroras dancing 31 00:02:02,680 --> 00:02:06,700 around as well. 32 00:02:06,720 --> 00:02:10,710 [slate] 33 00:02:10,730 --> 00:02:14,750 Well we're seeing changes over time and 34 00:02:14,770 --> 00:02:18,840 one thing that's helping us is that we're able to use multiple 35 00:02:18,860 --> 00:02:22,900 eyes to look at Jupiter. So the Juno probe that NASA 36 00:02:22,920 --> 00:02:27,070 launched has arrived at Jupiter. It's orbiting the planet. It's giving us 37 00:02:27,090 --> 00:02:31,130 close up images in detail of the different atmospheric bands 38 00:02:31,150 --> 00:02:35,180 and changes over time. And that we can compare with the images we're seeing from Hubble 39 00:02:35,200 --> 00:02:39,270 from a distance to really get a better overall 40 00:02:39,290 --> 00:02:43,420 picture of the planet. We're also learning about the interactions of the magnetic 41 00:02:43,440 --> 00:02:47,600 field, with the conditions on Jupiter itself. And we're learning a lot about 42 00:02:47,620 --> 00:02:51,630 Jupiter's moons as well which are intriguing. 43 00:02:51,650 --> 00:02:55,740 [slate] 44 00:02:55,760 --> 00:02:59,890 Well because Hubble has been operating for decades 45 00:02:59,910 --> 00:03:04,080 now, we've been able to look at Jupiter repeatedly over the years, 46 00:03:04,100 --> 00:03:08,130 and as we do we see something really intriguing and that is the fact that 47 00:03:08,150 --> 00:03:12,230 Jupiter's Great Red Spot is changing over time. It's not always 48 00:03:12,250 --> 00:03:16,360 the same color. It's not always the same shape. In fact it's getting rounded over 49 00:03:16,380 --> 00:03:20,530 time and smaller over time. It seems to be shrinking. We don't really know why. 50 00:03:20,550 --> 00:03:24,580 But it's telling us that there's a lot of dynamical activity on Jupiter 51 00:03:24,600 --> 00:03:28,600 well worthy of further study. 52 00:03:28,620 --> 00:03:32,670 [slate] 53 00:03:32,690 --> 00:03:36,800 Well Europa is intriguing because its 54 00:03:36,820 --> 00:03:40,860 a moon, it's an icy moon, an ice-crusted moon, but there 55 00:03:40,880 --> 00:03:44,930 are plenty of reasons to believe that there's a liquid ocean, liquid water 56 00:03:44,950 --> 00:03:49,040 liquid ocean under that ice crust. So we're very curious to know of course 57 00:03:49,060 --> 00:03:53,170 if there's liquid water, could it be habitable for life? That kind of thing. 58 00:03:53,190 --> 00:03:57,220 Lately we had a wonderful discovery with the Hubble Space Telescope 59 00:03:57,240 --> 00:04:01,270 of evidence that there are plumes of water vapor being 60 00:04:01,290 --> 00:04:05,360 expelled from between cracks in the ice of Europa. 61 00:04:05,380 --> 00:04:09,490 And these plumes which have been seen several times now 62 00:04:09,510 --> 00:04:13,670 may be a way that we can sample that water from the atmosphere 63 00:04:13,690 --> 00:04:17,710 from the inside, at least at first, and learn something about the nature of the water under the 64 00:04:17,730 --> 00:04:21,730 ice. 65 00:04:21,750 --> 00:04:25,850 [slate] 66 00:04:25,870 --> 00:04:29,990 There's all kinds of information about Hubble and access to the 67 00:04:30,010 --> 00:04:34,040 gallery of Hubble images at the website NASA.GOV/HUBBLE. 68 00:04:34,060 --> 00:04:38,100 And we're also reachable on Twitter @NASAHubble. 69 00:04:38,120 --> 00:04:40,260