A galaxy hosting a quasar in the distant universe, right, jabs another galaxy with its beam of intense radiation as the two bump and collide. Credit: ALMA / ESO / NAOJ / NRAO / Sergei Balashev / ...
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Quasar light signature shift challenges cosmic distance ruler
Confirming a non-universal X-ray-to-ultraviolet relation with cosmic time is quite surprising and challenges our ...
Standing on Earth and gazing out into the night sky, you’d think our Milky Way galaxy is relatively calm. Oh sure, there’s the occasional supernova and a bit of unrest as huge gas clouds collide and ...
Distant quasar J043947.08+163415.7 was discovered using gravitational lensing. It is the brightest object yet discovered in our Universe. An artist impression of the quasar has been created. Credit: ...
A team led by University of Arizona astronomers has discovered the most distant quasar ever found, and they believe it was fully formed 670 million years ago after the big bang. Credit: Illustration ...
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