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Black Holes Gave Our Baby Universe a Fever

Black Holes Gave Our Baby Universe a Fever
A graph showing the temperature of the intergalactic medium when the universe was between one and three billion years old, overlaid on an artist's impression of the emergence of galaxies over the same period. The shaded region shows the range of possible temperatures measured from the team's data. The warming occurred at a time when the growth of galaxies was in full swing.
(Image: © Amanda Smith/IoA)

The young universe

The find is

"One billion

Studying quasar

Becker and his

The scientists took

Since distant

"The gas, which

The quasar light had

This was something

"The likely

Quasars were

The role of

One of the lightest

Ultraviolet light

The researchers

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