Paxi - Rosetta and comets — Transcript

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1. 0:00[Music]
2. 0:12hi there I'm pxy and I come from a far
3. 0:15away planet I came to Earth to meet you
4. 0:19and tell you about my Space Adventures
5. 0:21are you ready to meet a
6. 0:24comet comets are so beautiful look at
7. 0:28this one it name is Halo Bop and it was
8. 0:31visible from Earth for many months in
9. 0:32the
10. 0:331990s many of you were not even born
11. 0:36then what makes Comet so beautiful is
12. 0:39their bright tail this makes them really
13. 0:42unique in the sky there is nothing else
14. 0:45that looks like
15. 0:46them let me take you closer to the edge
16. 0:49of the solar system where comets come
17. 0:52from I really want to find some of them
18. 0:55and show them to you close up you will
19. 0:57be
20. 0:58surprised here we are we are very far
21. 1:02away from the Sun here that's why it's
22. 1:05so cold freezing cold it is difficult to
23. 1:09imagine how cold it is
24. 1:11here can you see all those dark objects
25. 1:15they are like dirty snowballs they are
26. 1:25comets we're getting close to the Sun
27. 1:28and it's getting a bit warmer here look
28. 1:31something is happening to the comet you
29. 1:33can see some jets of gas and dust coming
30. 1:35out and all this stuff is making a
31. 1:37bright Cloud that goes all around it
32. 1:41this cloud is called the coma from the
33. 1:43ancient Greek word for hair
34. 1:46amazing now we're even closer to the sun
35. 1:49look the wind is coming from the sun
36. 1:51it's starting to push against the gas
37. 1:53and dust in the coma this is how comet's
38. 1:56Tails form this is really really EXC
39. 2:00exciting wow it goes faster my counter
40. 2:03says more than 100,000 km/ hour that's
41. 2:07about 30 times faster than the fastest
42. 2:10airplane on
43. 2:11earth most comets we see in the solar
44. 2:14system follow a path which has an oval
45. 2:16shape some of them swing around the Sun
46. 2:20and go back to the edge of the solar
47. 2:21system before heading in again for
48. 2:24another loop and again and
49. 2:28again some finish their life by diving
50. 2:31straight into the
51. 2:33Sun and others swing around the Sun
52. 2:36never to return so many different
53. 2:40paths let me now tell you a fascinating
54. 2:43story about comets and an amazing
55. 2:45robotic spacecraft called Rosetta
56. 2:48Rosetta's story began in 2004 when a
57. 2:51rocket blasted off from Earth carrying
58. 2:53it into space it was built by the
59. 2:56European Space Agency helped by many
60. 2:59space partners around the
61. 3:02world Rosetta spent the next 10 years
62. 3:05traveling in space to get to a comet C
63. 3:0867p Chum of
64. 3:11gameno and guess what in
65. 3:152014 it got there Rosetta is able to fly
66. 3:19near the comet as it gets closer to the
67. 3:22Sun it can take pitches measure the size
68. 3:25of the Comet and do a lot of
69. 3:27experiments Rosetto is quite quite big
70. 3:30with its solar panels open it is as high
71. 3:33as a sstory building and it is also
72. 3:36carrying a robotic Lander called filet
73. 3:39that is able to land on a comet filet is
74. 3:42about the size of a washing machine
75. 3:45landing on a comet is tricky if Fila did
76. 3:48not have harpoons and screws in its feet
77. 3:50to Anchor it to the surface it could
78. 3:53just bounce off the comet back into
79. 3:56space no spacecraft has ever flown
80. 3:59alongside inside a comet and landed on
81. 4:01it before that's why Rosetta is so
82. 4:03special the filet Lander can drill into
83. 4:06the surface of the comet look and sniff
84. 4:09around Rosetta and filet working
85. 4:11together are trying to understand what
86. 4:13comets are made of all this information
87. 4:16is stored on a computer on board rosesa
88. 4:19and a powerful radio antenna sends it to
89. 4:21scientists on Earth why is it so
90. 4:24important to study
91. 4:25comets it's because a long time ago when
92. 4:28your planet was young
93. 4:30long before the dinosaurs and even life
94. 4:32and plants appeared many comets hit the
95. 4:35earth a true bombardment believe me now
96. 4:39my scientist friends on Earth believe
97. 4:41that comets contain water and even the
98. 4:43basic building blocks of life this is
99. 4:46the material or molecules that make up
100. 4:49animals and
101. 4:50[Music]
102. 4:51plants Rosetta is helping them find out
103. 4:54if water in the oceans and the seeds of
104. 4:57Life were carried to Earth by
105. 5:00comets so we followed a comet and saw
106. 5:03its tail form and grow as it got closer
107. 5:05to the sun we also found out about an
108. 5:08amazing space mission Rosetta the first
109. 5:11spacecraft ever to fly alongside a comet
110. 5:14and Phil the first to attempt to land on
111. 5:17it soon we will be closer to knowing if
112. 5:20comets brought water and helped start
113. 5:22life on Earth how
114. 5:26[Music]
115. 5:28exciting