Gravitational waves stretch and squeeze the fabric of space and time itself. When space/time is squeezed, pulsar pulses ...

A quasar is a luminous manifestation of a supermassive black hole that accretes surrounding matter, sitting at the center of a host galaxy. ... can bend light coming from background objects.

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 ...

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

Astronomers first discovered quasars, the brightest and most powerful objects in the universe, 60 years ago. Now, scientists think they have unlocked the mystery behind what ignites these ...

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 ...

Home; Articles; Ruling out strongly interacting dark matter–dark radiation models from joint observations of cosmic microwave background and quasar absorption spectra ...

The black hole powering the quasar, the astronomers find, is 1.4 billion times as massive as the sun, in line with previous estimates. What’s new is the detection of the host galaxy, whose stars ...

For the study, the researchers compared NuSTAR observations of a distant quasar — designated J1429 +5447 — with unrelated observations of four months earlier by the Chandra X-ray telescope. The ...