shakedown.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
A community for live music fans with roots in the jam scene. Shakedown Social is run by a team of volunteers (led by @clifff and @sethadam1) and funded by donations.

Administered by:

Server stats:

288
active users

#galaxy

14 posts13 participants1 post today

Hubble image of Arp 299, also known as NGC 3690.

This image was taken in 2000 with Hubble's WFPC2 instrument to study the galaxies' hottest and brightest stars in ultraviolet light. Blue and green are ultraviolet, red is visible light. The observations show large amounts of interstellar dust in these merging galaxies.

Credit: NASA, R. Windhorst, and the Hubble mid-UV team
Source: hubblesite.org/contents/media/

A #JWST image of Herbig-Haro 49/50 — a frothy-looking outflow from a nearby #protostar — with a multi-hued spiral #galaxy.

Herbig-Haro objects are outflows produced by jets launched from a nearby, forming #star.

The outflows, which can extend for light-years, plow into a denser region of material.

This creates shock waves, heating the material to higher temperatures.

The material then cools by emitting light at visible and infrared wavelengths.

#astronomy
science.nasa.gov/missions/webb

A Total Lunar Eclipse Over Uruguay
Video Credit & Copyright: Mauricio Salazar
instagram.com/astropolo_/

Explanation:
If the full Moon suddenly faded, what would you see? The answer was recorded in a dramatic time lapse video taken during the total lunar eclipse last week from Uruguay. During a total lunar eclipse, the Earth moves between the Moon and the Sun, causing the Moon to fade dramatically. The Moon never gets completely dark, though, since the Earth's atmosphere refracts some light. As the featured video begins, the scene may appear to be daytime and sunlit, but actually it is nighttime and lit by the glow of the full Moon. As the Moon becomes eclipsed and fades, background stars become visible. Most spectacularly, the sky surrounding the eclipsed moon suddenly appears to be full of stars and highlighted by the busy plane of our Milky Way Galaxy. Nearly two hours after the eclipse started, the Moon emerged from the Earth's shadow and its bright full glare again dominated the sky.
science.nasa.gov/moon/
en.wikipedia.org/wiki/Lunar_ec
apod.nasa.gov/apod/ap250315.ht
apod.nasa.gov/apod/ap211201.ht
apod.nasa.gov/apod/ap110617.ht

science.nasa.gov/sun/
hyperphysics.phy-astr.gsu.edu/
youtube.com/watch?v=1DNbkKBW0K

atlasoftheuniverse.com/galaxy.
apod.nasa.gov/apod/ap110617.ht

apod.nasa.gov/apod/ap250324.ht

#space#moon#earth

Okay, geek question for folks out there. My son has since moved on to newer phones, and (once again) I am He Who Disposes Of Old Electronics. Any interesting things can you do with a Galaxy S9? SM-G960U 64GB. AT&T but probably unlockable, but I think it's been dropped a few times (seems to be rebooting itself now and then for no reason... but perhaps it's just been rootkitted by malware). Looks like they have near zero value on eBay. Wipe it and replace it with some other OS? Run Doom on it? #electronics #android #galaxy

SOUL: the immaterial essence, animating principle, or actuating cause of an individual life; the moral and emotional nature of human beings. (source: Merriam-Webster Dictionary) I watch the local and national news too much. As a result, I am witness to people facing serious life challenges that are beyond my own measured world. To me, the Soul People series reflects aspects of intrinsic humanity, including the suffering, alienation, confusion as well as the quest for joy, peace and understanding that people experience in their day to day lives. Depending upon the "soul" within, they deal with these challenges differently. In these images I am trying to explore and visualize what that might look like.
This artwork is now available on Redbubble:
https://www.redbubble.com/people/gretchenkdeahl/shop
(100% human-made) human imagined, drawn and painted, no AI whatsoever.
#art #artist #illustration #illustrator #spiritual #drawing #paintings #noAI #childrensbooks #fineart #artwork #nature #childrensart #artforchildren #interiordecor #mastoart #art #artistsonmastodon #artlover #artlovers #decor #popart #artnet #artlover #artlovers #handmade #supportthearts #friend #love #space #stars #galaxy #soul #child #face

Hubble image of Arp 194, also known as UGC 6945.

The upper component of this interacting galaxy group has two nuclei that appear to be connected and in the early stages of merging along with trails of blue super star clusters. The lower component of the group is a single large spiral galaxy with its own star clusters.

Credit: NASA, ESA, and the Hubble Heritage Team
Source: hubblesite.org/contents/media/

APOD from 2025-03-21

The Leo Trio

The Leo Triplet, a trio of spiral galaxies in constellation Leo, delights stargazers during the northern spring. NGC 3628, M66, and M65 vary in appearance due to their tilted angles. This image spans 1 degree and captures their gravitational interactions from #Earth, covering over half a million light-years.

HD image at apod.nasa.gov/apod/ap250321.ht #astronomy #galaxy #telescope #planet

Hubble image of Arp 300, also known as UGC 05028 and UGC 05029 .

UGC 05028 (the smaller spiral galaxy) and UGC 05029 (the larger spiral) form an interacting pair.

Interactions with its companion likely gave UGC 05028 its asymmetric structure. The bright knot in the bottom right of UGC 05028 may be yet another small galaxy that is in the process of merging.

Credit: NASA, ESA, J. Dalcanton, R. Windhorst, Gladys Kober
Source: science.nasa.gov/missions/hubb

Hubble image of Arp 107, also known as UGC 5984.

The one-armed spiral and its smaller elliptical companion galaxy are gravitationally interacting with one another, which is likely responsible for the spiral galaxy's unusual shape, as well as the bridge of gas and stars that connects the two galaxies.

Credit: ESA, NASA, J. Dalcanton, Dark Energy Survey, DOE, FNAL, NOIRLab, NSF, AURA, SDSS
Source: esahubble.org/images/potw2338a/

Image of Arp 85, also known as the Whirlpool Galaxy or M51, from the Atlas of Peculiar Galaxies by Halton Arp (1966).

In the original catalog, it was in the category: Spiral galaxies - Large, high surface brightness companions. Halton Arp mistakenly believed that the smaller galaxy, NGC 5195, was being ejected from the Whirlpool. In reality, the two galaxies are in the process of merging.

Source: ned.ipac.caltech.edu/level5/Ar

Image of Arp 285, also known as NGC 2854 and NGC 2856, from the Atlas of Peculiar Galaxies by Halton Arp (1966).

In the original catalog, it was in the category: Double and multiple galaxies - Infall and attraction. The upper galaxy, NGC 2856, has a clumpy tail perpendicular to its disk. It's an example of a “beads on a string” feature, where gravity creates knots of star formation at regular ~3,000 light year intervals.

Source: ned.ipac.caltech.edu/level5/Ar