The Andromeda Galaxy, also known as M31, is more than just a faint smudge in the night sky; it’s a colossal spiral galaxy, similar in size and structure to our Milky Way, and the closest galactic ...

A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda galaxy. Zoom in and explore.

Astronomers deployed the Hubble Space Telescope over the course of a decade to conduct 600 separate observations to produce ...

Hidden in the ‘Infinity Galaxy,’ a black hole floats in space where none should exist, upending old ideas about black hole birth.

"One day soon we may be able to see these 'missing' galaxies, which would be hugely exciting and could tell us more about how the universe came to be as we see it today." ...

They often twirl around heavier ones, like our Milky Way, as satellite dancers. The dark matter distribution of a Milky Way ...

Hubble’s crystal-clear look at NGC 1786—an ancient globular cluster tucked inside the Large Magellanic Cloud—pulls us 160,000 ...

Astronomy Update is provided by the Chippewa Valley Astronomical Society and is compiled by Dr. Lauren Likkel.

The annual competition for professional and amateur astrophotographers released its shortlisted images, which capture the ...

The Milky Way could have many more satellite galaxies than scientists have previously been able to predict or observe, ...