Supermassive black holes appear to be present at the center of every galaxy, going back to some of the earliest galaxies in the Universe. And we have no idea how they got there. It shouldn’t be ...

Twinkling like cosmic lighthouses on a shore 13 billion light-years from Earth, quasars are some of the oldest, brightest relics of the early universe that astronomers can detect today. Short for ...

Plenty of groups have been theorizing about primordial black holes (PBHs) recently. That is in part because of their candidacy as a potential source of dark matter. But, if they existed, they also had ...

Astronomers observed ancient quasars that appear to be surprisingly alone in the early universe. The findings challenge physicists' understanding of how such luminous objects could have formed so ...

After the universe was created, it took a few million years for the first light to shine across the cosmos. The first stars began forming, and so did ancient galaxies. As the gas and dust at the ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Observations confirm astronomers' expectation that early-Universe quasars formed in regions of space densely populated with companion galaxies. DECam's exceptionally wide field of view and special ...

ULAS J1120+0641, a quasar with a 2-billion solar mass black hole, is the first discovered beyond redshift 7, existing when the universe was 770 million years old, challenging current black hole growth ...

Lurking in a distant region of space, more than 13 billion light years away, is a luminous "quasar" fueled by a supermassive black hole 1.6 billion times more massive than the sun. Astronomers ...

A new study uses spectroscopy to separate and study baby quasars. Quasars are supermassive black holes that have absorbed enormous brightness. Colors representing gases help researchers distinguish ...

This image, taken by NASA’s James Webb Space Telescope, shows an ancient quasar (circled in red) with fewer than expected neighboring galaxies (bright blobs), challenging physicists’ understanding of ...

Sort of? You could conceivably red shift something so far that we no longer have the instruments to detect it, but I don't know how. The cosmic microwave background is still detectable, and it is at ...