Today, Hunter was required to chose a planet, and conduct some calculations regarding this planet (equation of elliptical path if sun represented the center, volume, surface area, and his weight on this planet). Some of the information necessary to research for these calculations were the farthest and closest distance Uranus is from the Sun, its radius (distance from the core to the surface), and the gravitational acceleration in meters per second squared. We discussed the units based on calculations, and scientific notation to simplify very large numbers.
We began speaking of space exploration (to research upcoming space exploration is his homework), and started talking about Mars. We did some calculations to find the time it would take to fly to Mars traveling 20 km/sec (what was said to be the fastest traveling spacecraft).