galactic evolution
Hubble Vision: Galaxy DDO 68 – Young Or Old?
Only astronomers know for sure... Or do they? In this assembly of images taken with Hubble's Advanced Camera for Surveys,…
Nearby Stream of Stars Reveals Past Cosmic Collision
The tangled remains of vast cosmic collisions can be seen across the universe, such as the distant Whirlpool Galaxy’s past…
Pushy Black Holes Stop Elliptical Galaxies From Forming Stars
Contradicting past theories, cold gas has been found in abundance in some elliptical galaxies -- showing that there must be…
The Great Galactic Turn-Off
Are you ready for a new galactic puzzle? Then let's start with some clues. It has been long assumed that…
Stacking Galactic Signals Reveals A Clearer Universe
Very similar to stacking astronomy images to achieve a better picture, researchers from the International Centre for Radio Astronomy Research…
How Can Growing Galaxies Stay Silent?
[/caption] Beginning around 2005, astronomers began discovering the presence of very large galaxies at a distance of around 10 billion…
Is M85 Missing a Black Hole?
[/caption] The conventional wisdom of galaxies is that they should have a central massive black hole (CMBH). The presence of…
More to Meets the Eye in M33
The spiral galaxy M33 is one of the largest galaxies in our local group. This spiral galaxy is moderately tilted…
Globular Clusters and the Age-Metallicity Relation
[/caption] Globular Clusters have a story to tell. These dense clumps of thousands of stars are relics of the…