News tagged with galaxy formation

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Image: Hubble eyes galactic refurbishment

The smudge of stars at the center of this NASA/ESA Hubble Space Telescope image is a galaxy known as UGC 5797. UGC 5797 is an emission line galaxy, meaning that it is currently undergoing active star formation. The result ...

dateMay 04, 2015 in Astronomy
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Where do stars form in merging galaxies?

Collisions between galaxies, and even less dramatic gravitational encounters between them, are recognized as triggering star formation. Observations of luminous galaxies, powered by starbursts, are consistent with this conclusion. ...

dateMar 02, 2015 in Astronomy
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Astronomers spy on galaxies in the raw

(Phys.org) —A CSIRO radio telescope has detected the raw material for making the first stars in galaxies that formed when the Universe was just three billion years old—less than a quarter of its current age. This opens ...

dateJun 24, 2013 in Astronomy
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Star formation near supermassive black holes

Most if not all galaxies are thought to host a supermassive black hole in their nuclei, a finding that is both one the most important and amazing in modern astronomy. A supermassive black hole grows by accreting mass, and ...

dateJun 22, 2015 in Astronomy
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Image: Hubble captures collision of two galaxies

This image, captured by the NASA/ESA Hubble Space Telescope, shows what happens when two galaxies become one. The twisted cosmic knot seen here is NGC 2623—or Arp 243—and is located about 250 million light-years away ...

dateOct 23, 2017 in Astronomy
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