#Galaxies

"We asked everyone: work on something that they loved about Galaxies, and showcase that to the world."

The Epoch of Reionization is when radiation from early galaxies and their stars reionized neutral hydrogen and let light travel freely through the cosmos. Some research shows that supernovae helped the process.…

Galaxies are like cosmic gems, each with characteristics including size and shape that make them distinct. A gallery from NASA’s Chandra X-ray Observatory and other telescopes displays a collection of galactic images that showcase this variety.

Supermassive black holes power tremendous jets that extend far beyond their galaxy. A new study finds how they can also warm material at the outer edge of a galaxy and reduce the rate of star production over time.

The NASA/ESA/CSA James Webb Space Telescope Picture of the Month features the brilliant golden galaxies belonging to the MACS J0454.1-0300 galaxy cluster.

A collision may have left these galaxies without dark matter. That spells trouble for alternative gravity theories.

Astronomers have uncovered compelling evidence of two supermassive black holes spiraling toward a potentially spectacular collision at the center of galaxy Mrk 501.…

NASA's stunning new gallery of 16 galaxies reveals colossal black hole jets, explosive star formation, and spectacular cosmic collisions through the combined power of Chandra, James Webb, Hubble, and other telescopes.…

This Hubble image features the active spiral galaxy Messier 88 (M88), located about 63 million light-years away.

Astronomers may have uncovered a hidden supermassive black hole inside the famous Antennae galaxies NGC 4038/4039, a pair of colliding galaxies best known for their spectacular bursts of star formation.…

"We might have detected one of the various small systems that contributed to form our Milky Way."

NASA’s Fermi telescope has detected what may be the first confirmed gamma-ray signal from a superluminous supernova — one of the most extreme explosions in the universe.…

Observations of "Little Red Dot" ancient galaxies by the James Webb Space Telescope could answer the question: which comes first, the black hole or its galaxy? The shocking answer could represent a complete paradigm shift.

An international team led by Associate Professor Kimihiko Nakajima of Kanazawa University has captured a rare look at the early universe. Using the James Webb Space Telescope (JWST) and the power of gravitational lensing, the team achieved a definitive…

We live in a golden age of astronomical imaging. Telescopes are capturing billions of galaxy images, painting the universe in breathtaking detail. But there's a problem, and it's a big one.…

It strikes me as quietly ridiculous, sitting in Middlemarch with a telescope barely bigger than a coffee mug, peering 60 million light-years into...

Using the James Webb Space Telescope, astronomers have mapped the "cosmic web" of galaxies, the largest structure in the universe, with unprecedented detail.

This Hubble image of lenticular galaxy NGC 1266 reveals its bright center and a face that hints at spiral structure.

Look for the Great Diamond of Spring in May's night sky and discover the rich realm of galaxies within.