The Hubble Space Telescope has stared deeper into a quasar than ever before ... to block the sun's photosphere to observe its dimmer outer atmosphere, or corona. This effect is similar to the ...

Astronomers have identified a quasar that may help explain how the universe’s “dark ages” finally ended. Astronomers have ...

Astronomers have detected an intensely brightening and dimming quasar that may help explain ... distant object detected by the NuSTAR X-ray space telescope (which launched in 2012) and stands ...

Scientists have found dark matter dominating the halos of two supermassive black holes 13 billion light years away.

Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to the first 1 billion years ...

Outer space has always captivated human imagination ... This water exists in the form of vapour around a quasar—a highly energetic and luminous object powered by the black hole’s intense ...

A Yale-led team of astronomers has detected an intensely brightening and dimming quasar that may help explain ... object detected by the NuSTAR X-ray space telescope (which launched in 2012 ...

ABSTRACT We present new Hubble Space Telescope (HST) Wide Field Planetary Camera images of the poststarburst quasar UN J1025−0040, which contains both an active galactic nucleus (AGN) and a 400 Myr ...

is the most distant object detected by the NuSTAR X-ray space telescope (which launched in 2012) and stands as one of the most highly “variable” quasars ever identified. “In this work, we have ...