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Outer Space Galaxy Stars Universe Cosmic Background

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Outer Space Galaxy Stars Universe Cosmic Background

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Outer Space Galaxy Stars Universe Cosmic Background

The star of this Hubble Picture of the Week is a galaxy known as NGC 4656, located in the constellation of Canes Venatici (The Hunting Dogs). However, it also has a somewhat more interesting and intriguing name: the Hockey Stick Galaxy! The reason for this is a little unclear from this partial view, which shows the bright central region, but the galaxy is actually shaped like an elongated, warped stick, stretching out through space until it curls around at one end to form a striking imitation of a celestial hockey stick. This unusual shape is thought to be due to an interaction between NGC 4656 and a couple of near neighbours, NGC 4631 (otherwise known as The Whale Galaxy) and NGC 4627 (a small elliptical). Galactic interactions can completely reshape a celestial object, shifting and warping its constituent gas, stars, and dust into bizarre and beautiful configurations. The NASA/ESA Hubble Space Telescope has spied a large number of interacting galaxies over the years, from the cosmic rose of Arp 273 to the egg-penguin duo of Arp 142 and the pinwheel swirls of Arp 240. More Hubble images of interacting galaxies can be seen here.

This image from Hubble’s Wide Field Camera 3 WFC3 shows NGC 1448, a spiral galaxy located about 50 million light-years from Earth in the little-known constellation of Horologium The Pendulum Clock . We tend to think of spiral galaxies as massive and roughly circular celestial bodies, so this glittering oval does not immediately appear to fit the visual bill. What’s going on Imagine a spiral galaxy as a circular frisbee spinning gently in space. When we see it face on, our observations reveal a spectacular amount of detail and structure a great ex&le from Hubble is the telescope’s view of Messier 51, otherwise known as the Whirlpool Galaxy. However, the NGC 1448 frisbee is very nearly edge-on with respect to Earth, giving it an appearance that is more oval than circular. The spiral arms, which curve out from NGC 1448’s dense core, can just about be seen. Although spiral galaxies might appear static with their picturesque shapes frozen in space, this is very far from the truth. The stars in these dramatic spiral configurations are constantly moving and spinning around the galaxy’s core, with those on the inside whirling around faster than those sitting further out. This makes the formation and continued existence of a spiral galaxy’s arms something of a cosmic puzzle, because the arms wrapped around the spinning core should become wound tighter and tighter as time goes on but this is not what we see. This is known as the winding problem.

Outer Space Galaxy Stars Universe Cosmic Background

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"Star field in space a nebulae and a gas congestion. "Elements of this image furnished by NASA"."

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Outer Space Gold Galaxy Stars Universe Cosmic Background

Outer Space Galaxy Stars Universe Cosmic Background

Star field in space and a nebulae. Star field in space a nebulae and a gas congestion. Elements of this image furnished by NASA.

Spiral Galaxy

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"Far being shone nebula and star field against space. "Elements of this image furnished by NASA". 3D rendering.. Being shone nebula. 3D rendering"

Outer Space Rainbow Galaxy Stars Universe Cosmic Background

Slow flight through galaxy

Slow flight through galaxy

A Cauldron of Stars at the Galaxy’s Center. Elements of this image furnished by NASA.

"Far being shone nebula and star field against space. "Elements of this image furnished by NASA". 3D rendering.. Being shone nebula and star field. 3D rendering"

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