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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.

Hubble and Keck’s observatory saw a giant galaxy in 3D

Space
A huge city of Myriad stars turns out to be potato-shaped.

New Universe’s cosmic expansion map confirms Einstein’s theory of gravity

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

Astronomers mapped disk winds in a far-off neutron star system

Space
The 2D map of this “disk wind” may reveal clues to galaxy formation.

Hubble discovers a double Quasar in the distant Universe

Space
They existed when the universe was just 3 billion years old.

Hubble sees a black hole streaking too fast to take time for a snack

Space
A runaway black hole creates a trail of stars.

Research team measured a value for the ‘clumpiness’ of the universe’s dark matter

Space
Using the dark matter distribution to test our cosmological model.

Collision of Taffy galaxies created a bridge of highly turbulent material

Space
The Gemini North telescope, one half of the International Gemini Observatory, operated by NSF’s NOIRLab, captured this dazzling image of UGC 12914 and UGC...

Chandra determined what causes a galaxy’s wind to blow

Space
Study the effects of powerful winds launched from the center of a nearby galaxy, NGC 253.

Astronomers witness the birth of a very distant galactic cluster from the early Universe

Space
Using the Atacama Large Millimeter/submillimeter Array (ALMA), of which ESO is a partner, astronomers have discovered a large reservoir of hot gas in the...

Hubble sees a diminutive dwarf galaxy without a defined structure

Space
It resembles nothing more than a hazy patch of passing cloud.

AI uncovered a secret equation for weighing galaxy clusters

AI & Machine Learning
A better way to estimate the mass of colossal clusters of galaxies.

Discovery of bubble-blowing relativistic jets at the center of the Teacup galaxy

Space
Study reveals a process that explains the peculiar morphology of the central region of the Teacup galaxy.
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