Well, of course, as soon as anybody did look, which was after about 20 years, when radio astronomy really took off. Because it turned out the universe is absolutely full of all kinds of wonderful things radiating in the radio spectrum, much brighter than the Sun.
Maar toen iemand na zo'n twintig jaar toch ging zoeken, nam de astronomie een grote vlucht. Het heelal bleek vol te zitten met allerlei wonderlijke dingen die veel krachtiger stralen uitzenden dan die van de zon.