Astronomy differs from most sciences in that we cannot do experiments; the astronomer must build up from his existing observations a picture or "model" of the Universe, and then look for further effects which should be observable if his model is correct.


Radio Astronomy and Cosmology, Proceedings of the Royal Institution, Volume 38, Number 173, 1961 - (p. 439)


Astronomy differs from most sciences in that we cannot do experiments; the astronomer must build up from his existing observations a picture or model ...

Astronomy differs from most sciences in that we cannot do experiments; the astronomer must build up from his existing observations a picture or model ...

Astronomy differs from most sciences in that we cannot do experiments; the astronomer must build up from his existing observations a picture or model ...

Astronomy differs from most sciences in that we cannot do experiments; the astronomer must build up from his existing observations a picture or model ...