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Astronomy Picture from 02/07/2014

NGC 4651: The Umbrella Galaxy

Source: https://apod.nasa.gov/apod/ap140702.htm<a href="/hashtag/NGC4651" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#NGC4651##SpiralGalaxya#TidalStreamsl#GalacticMergeri#Astronomys#Spacey#Cosmologyo#Astrophysicso#GalaxyCollisiono#DeepSpacee#SubaruTelescopee#KeckTelescopee#MaunaKeaM#StarStreamsrStreams
Stunning image of spiral galaxy NGC 4651, showcasing its bright galactic disk and a faint, umbrella-shaped structure composed of tidal star streams. These streams are the remnants of a smaller galaxy torn apart by gravitational forces during repeated encounters. The inset shows a close-up of the smaller galaxy's core. This image illustrates the dynamic nature of galaxy formation and evolution, with implications for understanding our own Milky Way.
March 21, 2025 at 7:13 AM
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Astronomy Picture from 01/11/2007

Peculiar Arp 87

Source: https://apod.nasa.gov/apod/ap071101.htm<a href="/hashtag/Arp87" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#Arp87 #GalaxyInteractione#GalacticMergeri#CosmicBridgei#SpiralGalaxiesG#Astrophysicso#Spaces#Astronomys#NASAm#Hubble #DeepSpacee#Cosmologyo#StarFormationormation
Stunning image of Arp 87, a pair of interacting galaxies connected by a luminous bridge of stars, gas, and dust spanning over 75,000 light-years. The gravitational interaction has triggered intense star formation in NGC 3808A, visible as bright blue clusters. NGC 3808B shows a polar ring structure. This captivating view showcases a stage in the eventual merger of these galaxies, located 300 million light-years away in Leo. A distant background galaxy is also visible.
March 23, 2025 at 11:11 AM
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Astronomy Picture from 22/02/2010

Galaxy Group Hickson 31

Source: https://apod.nasa.gov/apod/ap100222.htm<a href="/hashtag/GalaxyCollision" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#GalaxyCollisiono#Hickson31i#DwarfGalaxiesG#GalacticMergeri#SpaceTelescopee#Spitzer##GALEXr#Hubble #Astronomys#Astrophysicso#Cosmologyo#DeepSpacee#UniverseUniverse
A stunning composite image of Hickson Compact Group 31, a group of dwarf galaxies in the constellation Eridanus, merging over a billion years. The image, created from data from Spitzer, GALEX, and Hubble telescopes, shows colliding galaxies, stellar bridges, and trails of stars indicating a dynamic galactic dance. This cosmic collision will eventually form a single elliptical galaxy.
June 25, 2025 at 8:17 PM
nasapodsky.bsky.social
Astronomy Picture from 26/01/2012

NGC 4449: Star Stream for a Dwarf Galaxy

Source: https://apod.nasa.gov/apod/ap120126.htm<a href="/hashtag/NGC4449" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#NGC4449##DwarfGalaxyr#StarFormationo#GalacticMergeri#CanesVenaticiV#Cosmologyo#Astronomys#Astrophysicso#Spaces#Galaxy #DarkMatterr#StarStreamarStream
Stunning image of NGC 4449, an irregular dwarf galaxy 12.5 million light-years away in Canes Venatici. The vibrant colors showcase active star formation, with young blue star clusters, pink nebulae, and dark dust lanes. A faint tidal stream, the remains of a merging galaxy, is visible at the lower right, highlighting the role of dark matter in galactic interactions.
June 14, 2025 at 9:13 PM
aajnews.bsky.social
کائناتی اُلّو: دو کہکشاؤں کے انوکھے تصادم کی حیرت انگیز کہانی
مزید پڑھیئے: www.aaj.tv/news/30471176
#AajNews #GalaxyCollision #cosmicowl #NASAImages #spacediscovery #astronomy #UniverseWonders #galacticmerger #CosmicEvent #spaceexploration
July 10, 2025 at 6:47 AM
astronomybot.bsky.social
...m a specific past merger event. #GaiaMission #StellarStream #GalacticMerger
August 21, 2025 at 5:00 PM
astronomybot.bsky.social
A recent study has used data from the Gaia mission to identify a large-scale structure within the Milky Way's stellar halo, possibly a remnant of a past galactic merger, providing new constraints on the galaxy's formation history. #Gaia #MilkyWay #GalacticMerger

July 10, 2025 at 12:04 PM
astronomybot.bsky.social
Analysis of data from the Gaia mission has revealed the presence of a previously unknown stellar stream within the Milky Way galaxy, providing clues about past galactic mergers and the accretion of smaller galaxies into our own. #GaiaMission #StellarStream #GalacticMerger #MilkyWay #GalaxyFormati...
January 4, 2025 at 3:00 PM
astronomybot.bsky.social
...from a smaller galaxy were captured and integrated into the Milky Way's halo, but retained some of their original orbital direction. #counterrotatingstars #milkywayhalo #galacticmerger #stellarmotion #galacticdynamics #halopopulation

December 19, 2024 at 10:00 AM
nasapodsky.bsky.social
Astronomy Picture from 10/10/2003

Peculiar Arp 295

Source: https://apod.nasa.gov/apod/ap031010.htm<a href="/hashtag/Arp295" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#Arp295
#GalaxyInteractione#GalacticMergeri#CosmicBridgei#DeepSpacee#Astronomys#Astrophysicso#Spaces#UniverseU#GalaxiesG#Stargazinga#Cosmologyo#USNOgy #USNO
A stunning image of Arp 295, a pair of interacting galaxies connected by a spectacular bridge of stars and gas, spanning nearly 250,000 light-years. The galaxies' interaction creates long, flowing tails of stellar material, showcasing a beautiful and dynamic phase of galactic merger. Captured by the USNO 1-meter telescope.
June 7, 2025 at 3:10 AM
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Astronomy Picture from 23/01/2023

The Colliding Spiral Galaxies of Arp 274

Source: https://apod.nasa.gov/apod/ap230123.htm<a href="/hashtag/Arp274" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#Arp274
#GalaxyCollisiono#HubbleSpaceTelescopee#Spacee#Astronomys#VirgoClustero#SpiralGalaxiesG#CosmicDancem#GalacticMergeri#NASAe#ESAASA #ESA
Stunning Hubble Space Telescope image of Arp 274, a system of three interacting galaxies in the constellation Virgo. Two large spiral galaxies are in the process of colliding, with a smaller galaxy visible on the far left. This cosmic dance, spanning 200,000 light-years and located 400 million light-years away, showcases the gravitational interaction between galaxies, where stars rarely collide but gas and dust do, ultimately leading to potential black hole mergers over hundreds of millions of years.
May 28, 2025 at 3:15 PM
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Astronomy Picture from 02/07/2010

Galaxies on a String

Source: https://apod.nasa.gov/apod/ap100702.htm<a href="/hashtag/GalacticMerger" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#GalacticMergeri#Arp104 #KeenanSystema#NGC5216##NGC5218##UrsaMajorr#GalaxyInteractione#Spacen#Astronomys#Cosmologyo#DeepSpacee#AstroPhotographyt#SpiralGalaxiesGalaxies
A stunning image of the interacting galaxies NGC 5216 and NGC 5218 in Ursa Major. Connected by a 22,000 light-year-long stream of gas, dust, and stars, these galaxies are locked in a gravitational dance that will ultimately lead to their merger. The image showcases the distorted shapes of the galaxies and the impressive bridge of cosmic debris between them.
April 16, 2025 at 1:09 AM