Rosetta PowerPoint
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Transcript of Rosetta PowerPoint
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Presenters:
There are talking points in the notessection at the bottom of some of theslides (not visible in slide show mode).
Enjoy!
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THE ROSETTA
MISSION
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What are comets?
ce and dst.
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There are lots of rocks floating arondotside of the solar system. "ccasionally#
one changes trajectory# into the system.
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Why go?
$iscover details of comets% composition.
&ow did solar system evolve'
$o comets contain essential ingredientsof life'
re they the origin of the bilding blocksof life on earth'
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Basic facts aboutmission: * years of planning+
,* years flying time- lanched in arch/**0 on riane12 rocket+
3,.4 billion+
5osetta is the si6e of an 789+
Each solar panel jst shorter than a
semi1trck+ :hilae 1 washing machine si6e.
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Why is this an amazing mission?
$istance to comet re;ired hibernation+
7peed re;ired.
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Hibernation
"n *< =ne /*,,# 5osetta was pt intohibernation. >o contact. :lannedwakep date- /* =an /*,0.
Three () years no contact!
?hy'
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Mission delays
@atal flaws with riane rockets delayed5osetta mission over one year. AoldnBtcatch originally1planned comet.
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67P
They fond a new comet. C4: D Ahrymov1
erasimenko. t the limit of 5osettaBs distancecapabilities. 2** million miles from sn.7olar panels cold not get enogh power. (0F ofintensity of solar power on earth.)
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Hibernation
Trn off all non1essential e;ipment+
Gose comm.
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Hibernation (contd
:roblem 11 they had to sht down thegyrostabili6ers.
>ow craft cold rotate (solar panels
cold move away from sn# losing the0F energy they needed to keep essen1tials Hheaters# etcI rnning).
7oltion' ...
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!"in #osetta$
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Wa%e u" time:
7top spin+
et oriented. (djst alignment soantenna is pointing to earth).
&ow'
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!tar &rac%ers$
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'et ) send radio "ulse
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*reen is bac%ground radio noise
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+ hours late, s"i%ea""ears$
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'eed for !"eed$
C4: traveling at speeds as high as
,2#*** kph (
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!"eed (contd
5osetta was going 4C#*** mph after firstsling.
(Earth actally slowed one million
millionths of a mile per hor 11 giving itsspeed to 5osetta)
/ more Earth sling shots# , ars sling
shot. @inally got craft to rende6vos speed.
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(:osition of craft and planets approKimate)
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5ed dot indicates approKimate intersection with planet.
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-atest 'e.s
Ganding site-
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Philae !lee"ing
The lander is now in sleep mode.
>ot getting enogh snlight de tolanding bonce.
Aold revive as it gets closer to sn.
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&hey found organic com"ound$
Aold replicate /**C finding of an aminoacid (glycine) in comet dst collectedfrom tail of comet (mission- 7tardst)+
Theory- .< billion years ago 11 comethit earth# seeding it with amino acids Lthe bilding blocks of life!
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More data coming
5osetta contines to send data from itsorbit arond C4:.
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Main !ource:
oogle-
To catch a comet :M7 9ideo
(ake sre the entry yo click has theword video in it)
, hor docmentary- free.
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/ne *igundo ste" for human%ind$
Slid h t d b C t N fi i AEO SWR AZ 10 !S d AZ"