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2 PRIMARY Sci; 2 EXPL

[[underline]] SOLAR SYSTEM [[/underline]]

NASA TRADITION
                     { PRIMATIVE [[PRIMITIVE]](COMETS)
3 CLASSES of OBJECTS { OTHER
                     { INNER

INITIATIVE: MAJOR MISSION TO EACH CLASS of OBJECTS in 1990's STRATEGY DEVELOPED BY SSEC of NAC

① CRAF (~1993) ASTEROID BELT & COMET 
(BEST PRESERVED SAMPLES OF S.S., ∴ SS EVOLUTION)

② CASSINI (~1998 → 2005)
S/C TO SATURN & TITAN (ORBITER & 3 PROBES) STRUCTURE & COMPOSITION of GAS GIANT PLANET

③ MRSR (CENTERPIECE)
ROBOTIC ~1996: BRING BACK SAMPLES of MARS

[[underline]] EARTH [[/underline]]

STUDY FORCES THAT SHAPE & AFFECT ENVIRONMENT, HOW ENV. IS CHANGING, HOW CHANGES AFFECT VS GOAL: COMPREHENSIVE UNDERSTANDING of EARTH AS SYS.
- HOW COMPONENTS FUNCTION HOW SYS INTERACT @ EVOLVES

SPACE: ABILITY TO MAKE GLOBAL OBSERVATIONS (TECH FOR 1ST TIME) - PHYSICAL PROCESSES CONNECT OCEANS, ATM, BIO.

INCLUDES: - EXP & FREE - FLYING PLATFORMS in POLAR; LEO LOW INC. ; GEO....
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INT'L PGM & INVOLVE SEVERAL US AGENCIES{
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THAT WOULD MAKE INTEGRATED, LONG TERM MEAS.
- DATA SYS TO INTEGRATE & MODEL