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Avishai Dekal

A jet emitted from a black hole at the center of a galaxy. Illustration: shutterstock

Why supermassive black holes keep growing at the centers of massive galaxies

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Researchers from the Hebrew University and France discovered that below the critical size there are factors that prevent black holes from swallowing gas and growing, in galaxies with a mass of more than ten million suns, the attraction is large enough to pull more and more material from the galaxy to the black hole at its center
The Milky Way as photographed from 5,000 meters above sea level on the Chimborazo volcano in Ecuador. Photo: shutterstock - one new sun a year

Why galaxies in the early universe died young

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Dr. David Harel from the Weizmann Institute is interviewed by Gilad Shenhav from YNET at an evening of appreciation for Zvi Yanai. Photo: Avi Blizovsky

Science has progressed, the fundamental questions remain open. In memory of Zvi Yanai

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expansion of the universe. From Wikipedia

"The discovery of the Nobel laureates is the most important discovery in cosmology in the last decades"

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The planet Oron. Photo: Voyager 2

Uranus is from today Oron and Neptune from now on Rahab

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Astrophysicists at the Hebrew University formulated a new understanding of the formation of galaxies in the universe

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Researchers from the Hebrew University have developed a revolutionary model to explain the formation of galaxies

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Scientists: the universe will continue to expand at an increasing rate

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