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Curiosity about space

~ The heavens declare the glory of God; the skies proclaim the work of his hands. Ps. 19:1

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Tag Archives: spiral galaxies

APOD (Astronomy Picture of the Day)

24 Thursday Mar 2016

Posted by Bette Cox in Space

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spiral galaxies

APOD is one of the sites I subscribe to and one of my favorites. God’s marvelous creations – and the technology to view it – never fail to amaze me, awe me, and cause me to love Him more, the one who created it all with such loving detail. Click on the photo to enlarge.

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2016 March 24
See Explanation. Clicking on the picture will download the highest resolution version available.

Hickson 91 in Piscis Austrinus
Image Credit & Copyright: CHART32 Team, Processing – Johannes Schedler Explanation: Scanning the skies for galaxies, Canadian astronomer Paul Hickson and colleagues identified some 100 compact groups of galaxies, now appropriately called Hickson Compact Groups (HCGs). This sharp telescopic image captures one such galaxy group, HCG 91, in beautiful detail. The group’s three colorful spiral galaxies at the center of the field of view are locked in a gravitational tug of war, their interactions producing faint but visible tidal tails over 100,000 light-years long. Their close encounters trigger furious star formation. On a cosmic timescale the result will be a merger into a large single galaxy, a process now understood to be a normal part of the evolution of galaxies, including our own Milky Way. HCG 91 lies about 320 million light-years away in the constellation Piscis Austrinus. But the impressively deep image also catches evidence of fainter tidal tails and galaxy interactions close to 2 billion light-years distant.

Tomorrow’s picture: close comet


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