Sara and sam are each working on a science project in which they need to research the individual masses of the nine planets (including the dwarf planet pluto as the ninth planet). sara completes her data for the planets' masses in kilograms while sam's data is in milligrams. sara: planet mass (in kilograms) jupiter 1.989 · 1027 saturn 5.685 · 1026 neptune 1.024 · 1026 uranus 8.681 · 1025 earth 5.974 · 1024 venus 4.869 · 1024 mars 6.419 · 1023 mercury 3.302 · 1023 pluto 1.31 · 1022 sam: planet mass (in milligrams) jupiter 1.989 · 1033 saturn 5.685 · 1032 neptune 1.024 · 1032 uranus 8.681 · 1031 earth 5.974 · 1030 venus 4.869 · 1030 mars 6.419 · 1029 mercury 3.302 · 1029 pluto 1.31 · 1028 approximate how many times greater saturn's mass is than mercury's. 2,000,000 200,000 20,000 2,000