Galaxy's 'evenly spaced' eruptions likely due to black hole being fed

NASA’s Neil Gehrels Swift Observatory and Transiting Exoplanet Survey Satellite (TESS) has been used to study the flares emanating from active galaxy ESO 253-3. Researchers have theorized that the predictable flare events, named ASASSN-14ko, are likely from a black hole in the galaxy devouring a star. Credit: NASA Goddard Space Flight Center