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Artist’s conception of the most-distant supermassive black hole ever discovered. Illustration: Robin Dienel / Carnegie Institution for Science

Astronomers have found a black hole with a mass 800 million times greater than that of the Sun. The finding from 690 million years after the Big Bang, reported today in the journal Nature, may help scientists to better understand the evolution of the early universe when the first galaxies, stars and elements formed.

“It was the universe's last major transition and one of the current frontiers of astrophysics," astronomer Eduardo Bañados from the Observatories of the Carnegie Institution for Science said in a press release.

Some history: After a rapid phase of expansion immediately after the Big Bang, the plasma of electrons and protons in the universe began to cool about 400,000 years later and the particles clumped together to form neutral hydrogen gas. There was no light in the universe then until gravity formed matter into the first stars and galaxies. Their birth released ultraviolet light that pushed electrons out of the neutral hydrogen gas, putting it in the form we still see the gas in today — and the universe in a new phase where it was transparent to light.

What they saw: Using NASA's Wide-field Infrared Survey Explorer (WISE) and ground-based telescopes in Chile and New Mexico, they detected light from a quasar, bright disks of gas and dust that form as black holes draw in matter. The spectrum of light emitted indicated neutral hydrogen surrounds it — placing it in one of the universe'se key transitions.

"We have an estimate now, with about 1 to 2 percent accuracy, for the moment at which starlight first illuminated the universe," MIT's Rob Simcoe, an author of the study, told NPR.

It's size, given the universe was just 5% of its current age, is also confounding. “This black hole grew far larger than we expected in only 690 million years after the Big Bang, which challenges our theories about how black holes form," study co-author Daniel Stern of NASA's Jet Propulsion Laboratory said in a press release.

Go deeper

"Atmospheric river" swings Northern California from drought to flood

Satellite view of the bomb cyclone swirling off the coast of the Pacific Northwest and the atmospheric river affecting California on Oct. 24. Photo: CIRA/RAMMB

A series of powerful "atmospheric river" storms are delivering historic amounts of rainfall across parts of drought-stricken California and the Pacific Northwest — triggering widespread power outages and flooding.

Why it matters: The strong atmospheric river, packing large amounts of moisture, is causing Northern California to whiplash from drought to flood.

“You blew it”: GOP activist turns on corporations over vaccine mandates

The chairman of the American Conservative Union said on "Axios on HBO" he accepts "Joe Biden is my president, and I want him to succeed," but predicted Republicans retake the House and Senate in 2022 — with greater than 50% odds Donald Trump runs in 2024.

The big picture: In a joint interview with his wife, Mercedes, Matt Schlapp also refused to share their vaccination status. And he told corporate America "you blew it" by embracing vaccine mandates and liberal social stances that have alienated GOP voters and politicians.

4 hours ago - Politics & Policy

Pelosi expects “billionaire’s tax” to pay for Biden social spending

Photo: Yasin Ozturk/Anadolu Agency via Getty Images

House Speaker Nancy Pelosi (D-Calif.) said Sunday she expects the chamber to pass the bipartisan infrastructure plan by week’s end, and alternatives to corporate tax hikes and a “billionaires tax” will be used to finance President Biden’s promised expansion to the social safety net.

Why it matters: Pelosi’s comments come as House and Senate leaders try to wrap up a deal. What will get cut — and how the remainder will be paid — are linchpins to a final agreement.