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Galaxy

A galaxy is any of the systems of stars and interstellar matter that make up the universe. A galaxy is composed of stars, stellar remnants, interstellar gas, dust, and dark matter that are all held together by gravity.
Nature has provided an immensely varied array of galaxies, ranging from faint, diffuse dwarf objects to brilliant spiral-shaped giants.

NASA scientists create black hole jets with supercomputer

Space
New simulations show how weaker, low-luminosity jets produced by a black hole interact with galactic environment.

Scientists made some key determinations about the first galaxies to exist

Space
Non-detection of key signal allows astronomers to determine what the first galaxies were- and weren’t– like.

Astrophysicists looking for the second-closest supermassive black hole

Space
Verifying the existence of the supermassive black hole.

Astronomers observe intra-group light between galaxies

Space
The brightest parts of the intra-group light are ~50 times fainter than the darkest night sky on Earth.

Milky Way’s mysterious filaments have ‘older, distant cousins’

Space
New family portrait uncovers insights into the structures’ unknown origins.

A new study has revealed the true shape of the Milky Way’s halo of stars

Space
The tilt in our stars.

A new map of the universe displays the entire known cosmos

Space
The map allows you to scroll through the universe.

Death of a star reveals midsize black hole lurking in a dwarf galaxy

Space
Improving their understanding of the growth of supermassive black holes in massive galaxies.

Largest gas cloud discovered is 20 times bigger than the Milky Way

Space
Largest atomic gas structure around a galaxy group.

Astronomers discovered closest black hole to Earth

Space
Gemini North telescope on Hawai‘i reveals first dormant, stellar-mass black hole in our cosmic backyard.

IceCube neutrinos offer first glimpse into the inner depths of an active galaxy

Space
They are the next big step toward the realization of neutrino astronomy.

NASA’s Webb captures a miraculous image of merging galaxies

Space
Webb explores a pair of merging galaxies.
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