3. INNER STRUCTURE one of four terrestrial planets. rocky body like the Earth radius of 2,439.7 km.
4. SOLAR SYSTEM
5.
6. orbiting the sun every 224.7 Earth days…KNOWN as the MORNING STAR or EVENING STAR VENUS
7. Physical characteristics one of the four solar terrestrial planets very similar to the Earth it HAS a rocky body Earth's "sister" or "twin" diameter of Venus is only 650 km less than the Earth's, and its mass is 81.5% of the Earth's.
17. seventh in size and mass. rotational period and seasonal cycles of Mars are likewise similar to those of Earth site of Olympus Mons and of VallesMarineris Mars has approximately half the radius of Earth