Moon phases, eclipses, lunar orbit, waxing/waning cycle, umbra and penumbra, solar vs lunar eclipse

Earth’s motion, day-night cycle, axial tilt, seasons, solstices and equinoxes, Earth′s revolution

Solar system structure, planet classification, terrestrial vs gas giants, asteroid belt, dwarf planets

Telescopes, light gathering, resolving power, optical vs radio telescopes, atmospheric distortion

Stars lifecycle, nuclear fusion, main sequence, red giant, supernova, white dwarf, neutron stars

Galaxy types, Milky Way structure, black holes, universe expansion, Big Bang theory, redshift observations