rotating radio transients
... that rotating radio transients are among the brightest astronomical sources of radio waves, yet are generally detectable for less than one second a day?
... that <b id="mwFoQ"><a href="./Rotating_radio_transient" id="mwFoU" rel="mw:WikiLink" title="Rotating radio transient">rotating radio transients</a></b> are among the brightest <a href="./Astronomy" id="mwFoY" rel="mw:WikiLink" title="Astronomy">astronomical</a> sources of <a class="mw-redirect" href="./Radio_waves" id="mwFoc" rel="mw:WikiLink" title="Radio waves">radio waves</a>, yet are generally detectable for less than one second a day?