Galaxies
Early galaxy ‘Sparky’ was a star factory
Early galaxy ‘Sparky’ was a star factory

In the hotter, more violent environment of the early Universe, extremely massive galaxies formed. Observing the formation of these giant galaxies has been problematic due to shrouds of dust around their cores, which block visible light...

   
Telescopes capture unprecedented view of early colliding galaxies
Telescopes capture unprecedented view of early colliding galaxies

According to a European Southern Observatory (ESO) statement, an array of ground and space telescopes has obtained amazing new images of a distant galactic collision that occurred when the Universe was half of its current age of 13...

   
Scientists discover distant galaxy that acts as gravitational lens
Scientists discover distant galaxy that acts as gravitational lens

Scientists have discovered an elliptical galaxy 9.6 billion years away that can be used as a gravitational lens to magnify an even more distant galaxy astronomers would normally be incapable of seeing...

   
Study confirms role of ‘local hot bubble’ in X-ray background
Study confirms role of ‘local hot bubble’ in X-ray background

Peering into the night sky with X-ray detectors, an observer would witness the whole sky lit up with the glow of the diffuse X-ray background. Five decades after its discovery, the origins of this X-ray glow are enigmatic...

   
Hubble images of elliptical galaxy yield surprising discoveries
Hubble images of elliptical galaxy yield surprising discoveries

Recent Hubble images of Centaurus A, the elliptical galaxy closest to the Milky Way, reveal it is surrounded by a halo of stars much larger than previously thought and that stars within that halo are surprisingly metal-rich...

   
Astronomers construct most detailed galaxy cluster mass map yet
Astronomers construct most detailed galaxy cluster mass map yet

Observations from Hubble’s Frontier Fields observing program has allowed astronomers to map the mass distribution of a galaxy cluster with unmatched detail...

   
Dwarf galaxies discovered ‘dancing’ around their giant counterparts
Dwarf galaxies discovered ‘dancing’ around their giant counterparts

It seems that even galaxies have a sense of rhythm to them. Scientists have uncovered that they "dance" around giant galaxies in a disc-like pattern. This discovery differs from the conventional model about their movements, one which held that the smaller galaxies swarmed around the larger ones...

   
Scientists: Cosmic tug of war in the stars requires more investigation
Scientists: Cosmic tug of war in the stars requires more investigation

According to astronomers, a string of stars -- aligned like a necklace of blue pearls and found along two elliptical galaxies -- could be the result of a galactic merger...

   
Meet the seven dwarfs: ‘Homemade’ telescope discovers new galaxies
Meet the seven dwarfs: ‘Homemade’ telescope discovers new galaxies

Yale astronomers have found seven dwarf galaxies using a new kind of telescope constructed by joining together telephoto lenses...

   
Galaxies unite to create ‘beads on a string’ phenomenon
Galaxies unite to create ‘beads on a string’ phenomenon

Two galaxies have intertwined to create a bright string of stars, stretching as far as the length of our Milky Way galaxy. Astronomers claim the stars appear as gems shining bright on a necklace, a sight that was initially thought of as an illusion...