Galaxies
Latest about Galaxies
What is the Large Magellanic Cloud?
By Keith Cooper last updated
Reference Learn all about the Large Magellanic Cloud, including what it is, what it features and its relation to the Milky Way.
Hubble Telescope reveals galaxy that hosted a supernova 2.5 billion times brighter than the sun (photo)
By Robert Lea published
The Hubble Space Telescope zoomed into a galaxy 150 million light years away to study a supernova that released 2.5 billion times more energy than the sun, resulting in a stunning image.
How do we know what the Milky Way looks like?
By Paul Sutter published
Directly mapping the Milky Way is an extremely challenging task, but observations of other galaxies helped us piece together what our home galaxy looked like.
Surprise gamma-ray discovery could shed light on cosmic mystery
By Robert Lea published
An unexpected and unexplained gamma-ray signal from beyond the Milky Way found among 13 years of NASA Fermi Telescope data could be linked to another cosmic mystery.
Astronomers accidentally discover 'dark' primordial galaxy with no visible stars
By Robert Lea published
Astronomers inadvertently discovered a "dark" galaxy rich in gas but lacking stars when they pointed the Green Bank Telescope in the wrong direction.
The mystery of vast 'cosmic ORCs' — odd radio circles that encompass entire galaxies — may be solved
By Robert Lea published
Mysterious "odd radio circles" or ORCs that compass entire galaxies may have finally been explained, with astronomers pointing the finger at winds from bursts of supernova star explosions.
One of the closest galaxies to the Milky Way is hiding a second galaxy behind it, new research reveals
By Robert Lea published
New observations of the Small Magellanic Cloud show that it might actually be two galaxies disguised as one.
Ripples in the oldest known spiral galaxy may shed light on the origins of our Milky Way
By Samantha Mathewson published
Observations have revealed the first-ever seismic waves seen in an ancient galaxy, offering new insight on the origins of our very own Milky Way.
Unexpected cosmic clumping could disprove our best understanding of the universe
By Ben Turner published
The new study of galaxies, centered around a value for cosmic lumpiness known as S8, could join the Hubble tension in dethroning our best picture of how the universe evolved.
After 2 years in space, the James Webb Space Telescope has broken cosmology. Can it be fixed?
By Ben Turner published
For decades, measurements of the universe's expansion have suggested a disparity, which threatens to break cosmology as we know it. The James Webb Space Telescope is looking at it.
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