Theoretical astronomy led to speculations on the existence of objects such as black holes and neutron stars, which have been used to explain such observed phenomena as quasars, pulsars, blazars, and radio galaxies.
Astronomie wan təmusne inuzguman fal amel ən haratan amosnen as tiɣuš kawalnen əd etran ən neutrontan, wi aqalnen amitkalan fal aliɣi ən azamanan atiwakyadnen atamosan quasars, pulsars, blazars əd radio ən etran.