| molecule(noun, form, study, science, field) |
| nucleobase(noun, study, treatment, science, knowledge) |
| organic compound(noun, expression, study, treatment, science) |
| organic matter(noun, expression, study, treatment, science) |
| outer space(noun, expression, form, study, science) |
| protostar(noun, study, treatment, science, knowledge) |
| protostellar binary(noun, expression, study, treatment, science) |
| quantum mechanical phenomenon(noun, expression, study, treatment, science) |
| radiation(noun, form, study, science, field) |
| radical(noun, study, treatment, science, knowledge) |
| radio wave(noun, expression, study, treatment, science) |
| solid material(noun, expression, study, treatment, science) |
| space(noun, form, study, science, field) |
| spectroscopy(noun, form, study, science, field) |
| spectrum(noun, form, study, science, field) |
| star(noun, form, study, science, field) |
| stellar evolution(noun, expression, study, treatment, science) |
| symmetry-forbidden reaction(noun, expression, study, treatment, science) |
| temperature(noun, expression, form, study, science) |
| timescale(noun, study, treatment, science, knowledge) |