Mars and Jupiter Mercury and Venus Earth and Mars Jupiter and Saturn 3. I am often called a snowball in space. Meteor Constellation 4. Halley's Comet appears once every . . . Decade 43 years 100 years 76 years 6.
Rotation is . . .
The circling of a smaller object around a larger object is . . . A non-metallic chemical element. All of the above 7. A natural body having a regular orbit around a larger body 8. In Greek mythology, Orion was . . .