Large and small galaxies may grow in ways more similar than expected

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Large and small galaxies may grow in ways more similar than expected
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Galaxies like the Milky Way grow by merging with smaller galaxies over billions of years, unlike dwarf galaxies, which have long been thought to lack the heft to attract mass and grow in the same way. New observations challenge this view, suggesting that even dwarf galaxies can accrete mass from other small galaxies.

Large and small galaxies may grow in ways more similar than expected." ScienceDaily. ScienceDaily, 16 January 2025. <www.sciencedaily.com

A new study has found galaxies with more neighbors tend to be larger than their counterparts that have a similar shape and mass, but reside in less dense environments. The team, which used a ... If you look at massive galaxies teeming with stars, you might be forgiven in thinking they are star factories, churning out brilliant balls of gas. But actually, less evolved dwarf galaxies have ...

According to the standard model of cosmology, the vast majority of galaxies are surrounded by a halo of dark matter particles. This halo is invisible, but its mass exerts a strong gravitational pull ... Three dozen dwarf galaxies far from each other had a simultaneous 'baby boom' of new stars, an unexpected discovery that challenges current theories on how galaxies grow and may enhance our ...The Universe Is Expanding Too Fast to Fit Theories: Hubble Tension in CrisisThis Fast and Agile Robotic Insect Could Someday Aid in Mechanical Pollination

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