Olivia began scribbling down notes as she tried to keep up with all the information presented. Sun of our sun. Somehow that phrase made her chuckle a little. She didn't know why but it did. Sun of our sun. Moon of our moon. Ahem. Focus. She turned her gaze back to her notebook and continued writing.

The distance from the Milky Way system to the Galactic Centre? She bit her lip. Probably a fairly big number would represent the distance. She remained quiet when she heard other students offer answers of 30,000 and 28,000. Those numbers made sense... She nodded her head in agreement with both instead of offering an answer.