| sunrise(noun, feature, characteristic, light, heat) |
| alba(noun, heat, star, sun, astronomy) |
| eclipse(noun, heat, star, sun, astronomy) |
| star(noun, heat, sun, astronomy, universe) |
| stars(noun, heat, star, sun, astronomy) |
| coriolis force(expression, noun, term, astronomy, universe) |
| cosmic rays(expression, noun, term, astronomy, universe) |
| gamma ray(expression, noun, term, astronomy, universe) |
| gas giant(expression, noun, term, astronomy, universe) |
| gibbous moon(expression, noun, term, astronomy, universe) |
| globular cluster(expression, noun, term, astronomy, universe) |
| gravitational constant(expression, noun, term, astronomy, universe) |
| gravitational lens(expression, noun, term, astronomy, universe) |
| meteor shower(expression, noun, term, astronomy, universe) |
| milky way(expression, noun, term, astronomy, universe) |
| minor planet(expression, noun, term, astronomy, universe) |
| partial eclipse(expression, noun, term, astronomy, universe) |
| plane of the ecliptic(expression, noun, term, astronomy, universe) |
| planetary nebula(expression, noun, term, astronomy, universe) |
| pole star(expression, noun, term, astronomy, universe) |