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Astronomy May 11, 2023

Hidden supermassive black holes brought to life by galaxies on collision course

Astronomers have found that supermassive black holes obscured by dust are more likely to grow and release tremendous amounts of energy when they are inside galaxies that are expected to collide with a neighboring galaxy. ...

Astronomy May 10, 2023

Stephen Hawking and I created his final theory of the cosmos—here's what it reveals about the origins of time and life

The late physicist Stephen Hawking first asked me to work with him to develop "a new quantum theory of the Big Bang" in 1998. What started out as a doctoral project evolved over some 20 years into an intense collaboration ...

Astronomy Apr 24, 2023

Webb reveals early-universe prequel to huge galaxy cluster

Every giant was once a baby, though you may never have seen them at that stage of their development. NASA's James Webb Space Telescope has begun to shed light on formative years in the history of the universe that have thus ...

Astronomy Apr 21, 2023

The first light in the universe helps build a dark matter map

In the 1960s, astronomers began noticing a pervasive microwave background visible in all directions. Thereafter known as the Cosmic Microwave Background (CMB), the existence of this relic radiation confirmed the Big Bang ...

General Physics Apr 21, 2023

Probing fundamental symmetries of nature with the Higgs boson

Where did all the antimatter go? After the Big Bang, matter and antimatter should have been created in equal amounts. Why we live in a universe of matter, with very little antimatter, remains a mystery. The excess of matter ...

General Physics Apr 13, 2023

Physicists lead experiments to explore the force that binds the universe

The universe began about 14 billion years ago with a single point that contained a vast array of fundamental particles, according to the prevailing theory known as the Big Bang. Under the pressure of extreme heat and energy, ...

Astronomy Apr 13, 2023

Researchers discover tiny galaxy with big star power using James Webb telescope

Using first-of-their-kind observations from the James Webb Space Telescope, a University of Minnesota Twin Cities-led team looked more than 13 billion years into the past to discover a unique, minuscule galaxy that generated ...

Astronomy Apr 13, 2023

James Webb Space Telescope images challenge theories of how universe evolved

The James Webb Space Telescope (JWST) appears to be finding multiple galaxies that grew too massive too soon after the Big Bang, if the standard model of cosmology is to be believed.

Astronomy Apr 12, 2023

How different were galaxies in the early universe?

An array of 350 radio telescopes in the Karoo desert of South Africa is getting closer to detecting the "cosmic dawn"—the era after the Big Bang when stars first ignited and galaxies began to bloom.

Astronomy Apr 11, 2023

New findings that map the universe's cosmic growth support Einstein's theory of gravity

For millennia, humans have been fascinated by the mysteries of the cosmos.

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