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HCG 91: Furious Gravity Tug of War Between Galaxies

By on May 7, 2016 in Galaxies | 0 comments

Here’s a fantastic photo of a group of galaxies playing gravitational tug of war located a staggering 320 million light-years away from Earth in the constellation Piscis Austrinus. These group of galaxies are what as known as Hickson Compact Group 91 or HCG 91. They are named so because a Canadian astronomer named Paul Hickson discovered 100 compact groups of galaxies. The tails of these galaxies are actually 100,000 light-years long! Because of their “close” interaction the galaxies are triggering furious star formations. On a cosmic timescale these galaxies will merge together to form one larger galaxy which is how our very own Milky Way Galaxy formed. What is also impressive about this image is that it captures fainter galaxy interactions that are 2 billion light years away from Earth! Further Reading or Sources:...

The Destructive Fate of the Comet Galaxy

By on Mar 9, 2016 in Galaxies | 1 comment

Galaxies all come in different shapes and sizes and it plays on our imagination of what life could be like in other galaxies. However, the Comet Galaxy brings something new to the table. It’s what astronomers and scientists discovered about this galaxy that made it so intriguing. The galaxy is ripping itself apart while flying through space at incredible speeds.   At the top left you can see the infamous Comet Galaxy leaving a trail of stars and gas as it’s flying through at 3.5 million kilometers/hr or 972 kilometers per second!! So you can imagine that this thing is just barely holding on to its mass and stars as it’s flying through. The Comet Galaxy is located 3.2 billion light years away in Abell 2667, so really it takes a very powerful telescope to even see this thing. The temperatures in the galaxy are estimated between 10 – 100 million degrees...