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#galaxy

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Arp Bot 🤖

JWST NIRCam image of Arp 142, also known as NGC 2936 and NGC 2937, or the Penguin and the Egg.

In this wide view, we see the Penguin (laying on its back) and the Egg, and the foreground edge-on spiral PGC 1237172. There are also a large number of distant galaxies, some seen as tiny spirals and ellipticals, and many appearing as dots.

Credit: NASA, ESA, CSA, STScI
Source: webbtelescope.org/contents/med

#ArpGalaxy#Galaxy#Space
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Daniel Fischer

RUBIES Reveals a Massive Quiescent #Galaxy at z = 7.3: iopscience.iop.org/article/10. -> Galaxies die earlier than expected: unige.ch/medias/en/2025/les-ga - an international team led by UNIGE shows that red and dead galaxies can be found only 700 million years after the Big Bang, indicating that galaxies stop forming stars earlier than predicted by models.

iopscience.iop.orgRadware Bot Manager Captcha
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Arp Bot 🤖

GALEX and SDSS image of Arp 285, also known as NGC 2854 and NGC 2856.

The left image from GALEX shows Arp 285 in ultraviolet light. The right image is from the visible light Sloan Digital Sky Survey.

The upper galaxy, NGC 2856, has a clumpy tail perpendicular to its disk, an example of a “beads on a string” feature. Gravity creates knots of star formation at regular intervals.

Credit: Fig. 12 from Smith et al. 2010.
Source: iopscience.iop.org/article/10.

#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Spitzer, Hubble, and Chandra image of Arp 26, also known as M101 or the Pinwheel Galaxy.

In the infrared light Spitzer view we see a network of yellow-green of dust lanes. In the visible light Hubble view, the dust is dark and blue star clusters dot the spiral arms. In the X-ray Chandra view, we see million-degree gas, supernova remnants, neutron stars, and black holes.

Credit: NASA, ESA, CXC, JPL, Caltech, STScI
Source: spitzer.caltech.edu/image/ssc2

#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Hubble image of Arp 284, also known as NGC 7714 and NGC 7715.

In this image of NGC 7714, we see a golden loop of of Sun-like stars that has been separated from the young, blue stars in the arms and bar of the galaxy. They were pulled like taffy during a close encounter with its companion galaxy, NGC 7715 (out of frame), about 100 million to 200 million years ago.

Credit: NASA, ESA, A. Gal-Yam
Source: hubblesite.org/contents/media/

#ArpGalaxy#Galaxy#Space
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