Astronomers have detected an intensely brightening and dimming quasar that may help explain how some objects in the early universe grew at a highly accelerated rate. The discovery is the most ...

A happy coincidence and a theory first put forward by Albert Einstein over 100 years ago helped scientists detect faint ...

This distant quasar shines 500 trillion times brighter than our sun, and its black hole is more than 17 billion times more immense than our sun.

Yale’s Priyamvada Natarajan and colleagues have identified the oldest known X-ray quasar — offering compelling proof of a concept Natarajan helped pioneer.

Astronomers have discovered the brightest object ever observed in the universe. Astronomers discovered a quasar, which is the "brightest of its kind" and the "most luminous object ever observed ...

New research that was published in the journal Nature Astronomy on Monday lays out the discovery of a distant quasar containing what scientists say is the fastest-growing black hole ever recorded.

It's a "radio-loud" quasar, meaning its jets are bright in radio wavelengths. Only about 10% of quasars discovered fall into this category.

Envision a celestial body so bright that it surpasses the combined brightness of billions of stars, an entity so strong that it consumes the material of a sun each day. The brightest known object ...

Alas, the quasar 3C 273 can’t compete on those terms. What 3C 273 offers instead is the chance to see the most distant object visible through a modest telescope.

A new, Yale-led study has identified a quasar that may help explain how the universe’s “dark ages” finally ended.