what NASA saw on bts' birthdays
•°✧a beautiful thread✦°.

𝑲𝒊𝒎 𝑺𝒆𝒐𝒌𝒋𝒊𝒏, 𝑫𝒆𝒄 4𝒕𝒉

𝘼𝙣𝙙𝙧𝙤𝙢𝙚𝙙𝙖 𝙂𝙖𝙡𝙖𝙭𝙮 𝙃𝙖𝙡𝙤
The deepest visible-light image ever taken of the sky resolves approximately 300,000 stars in the halo of the nearest neighboring spiral galaxy, Andromeda.

The halo is a cloud of stars around Andromeda,located 2.5million light-years from Earth.These stars span a wide range of ages,from 6to 13billion y/o.The age range is much wider than that of the population of stars in the halo of our own MilkyWay,where 11to 13bill y/o stars reside

You can see a globular cluster in Adromeda falls near the bottom of the image (the white,spherical object). Thousands of background galaxies also can be seen through the veil of stars. On the right edge of the image u can see a blue& a red galaxy crashing into each other

𝑴𝒊𝒏 𝒀𝒐𝒐𝒏𝒈𝒊, 𝑴𝒂𝒓 9𝒕𝒉

𝙂𝙖𝙡𝙖𝙭𝙮 𝘾𝙡𝙪𝙨𝙩𝙚𝙧 𝘼𝙗𝙚𝙡𝙡 2261
The giant elliptical galaxy in the center of this image is the most massive and brightest member of the galaxy cluster Abell 2261.

Spanning a little more than one million light-years, the galaxy is about 10 times the diameter of our Milky Way and it's three billion light-years away from Earth.

The bloated galaxy is a member of an unusual class of galaxies with a diffuse core filled with a fog of starlight. The Hubble observations revealed that the galaxy's puffy core, measuring about 10,000 light-years, is the largest yet seen.

𝑱𝒖𝒏𝒈 𝑯𝒐𝒔𝒆𝒐𝒌, 𝑭𝒆𝒃 18𝒕𝒉

𝙃𝙚𝙧𝙗𝙞𝙜-𝙃𝙖𝙧𝙤 24
In the center of the image, partially obscured by a dark, Jedi-like cloak of dust, a newborn star shoots twin jets out into space as a sort of birth announcement to the universe.

This celestial lightsaber does not lie in a galaxy far, far away, but rather inside our home galaxy, the Milky Way. It's inside a turbulent birthing ground for new stars known as the Orion B molecular cloud complex, located 1,350 light-years away.

The protostar is feeding on the disk with a Jabba-like appetite. Gas from the disk rains down onto the protostar and engorges it. Superheated material spills away and is shot outward from the star in opposite directions along an uncluttered escape route,the star's rotation axis.

𝑲𝒊𝒎 𝑵𝒂𝒎𝒋𝒐𝒐𝒏, 𝑺𝒆𝒑 12𝒕𝒉

𝙂𝙖𝙡𝙖𝙭𝙮 𝙉𝙂𝘾 3310
NGC 3310 has a distance of about 59 million light-years. Since young stars are blue, and older stars redder, the colors can be related to their ages.

There are several hundred star clusters in NGC 3310,visible in the Heritage image as the bright blue diffuse objects that trace the galaxy's spiral arms.Each of these star clusters represents the formation of up to about a mil stars, a process that takes less than 100,000 years.

The star clusters become redder with age as the most massive and bluest stars exhaust their fuel and burn out. The wide range of cluster colors in this image show that the starburst "turned on" over 100 mil years ago,probs when a companion galaxy collided with NGC 3310.

𝑷𝒂𝒓𝒌 𝑱𝒊𝒎𝒊𝒏, 𝑶𝒄𝒕 13𝒕𝒉

𝙃𝙚𝙧𝙗𝙞𝙜-𝙃𝙖𝙧𝙤 24 (same as hobi's but here are more info)
Just in time for the release of the movie"Star Wars Episode VII:The Force Awakens"NASA's Hubble Space Telescope has photographed what looks like a cosmic, double-bladed lightsaber

Just to the right of the cloaked star, a couple of bright points are young stars peeking through and showing off their own faint lightsabers, including one that has bored a tunnel through the cloud towards the upper-right side of the picture.

Hubble's observations for this image were performed in infrared light, which enabled the telescope to peer through the gas and dust cocooning the newly forming stars and capture a clear view of the HH objects.

𝑲𝒊𝒎 𝑻𝒂𝒆𝒉𝒚𝒖𝒏𝒈, 𝑫𝒆𝒄 30𝒕𝒉

𝙎𝙩𝙚𝙥𝙝𝙖𝙣'𝙨 𝙌𝙪𝙞𝙣𝙩𝙚𝙩
This close-up view of Stephan's Quintet, a group of five galaxies, reveals a string of bright star clusters. The clusters were born from the violent interactions between some members of the group.

The clusters' bluish color indicates that they're relatively young. Their ages span from about 2 million to more than 1 billion years old.The quintet is in the constellation Pegasus, 270 million light-years from Earth.

The picture showcases three regions of star birth: the long, sweeping tail and spiral arms of NGC 7319 [near center]; the gaseous debris of two galaxies, NGC 7318B and NGC 7318A [top right]; and the area north of those galaxies, dubbed the northern starburst region [top left].

𝑱𝒆𝒐𝒏 𝑱𝒖𝒏𝒈𝒌𝒐𝒐𝒌, 𝑺𝒆𝒑 1𝒔𝒕

𝙃𝙪𝙗𝙗𝙡𝙚 𝙐𝙡𝙩𝙧𝙖 𝘿𝙚𝙚𝙥 𝙁𝙞𝙚𝙡𝙙
The faintest and reddest objects in the image are galaxies that formed 600 million years after the Big Bang. No galaxies have been seen before at such early times.

The photo was taken with the new WFC3/IR camera on Hubble in late August 2009 during a total of four days of pointing for 173,000 seconds of total exposure time. Infrared light is invisible and therefore does not have colors that can be perceived by the human eye.

The colors in the image are assigned comparatively short, medium and long, near-infrared wavelengths. The representation is "natural" in that blue objects look blue and red objects look red. The faintest objects are about one-billionth as bright as can be seen with the naked eye.

𝑩𝑻𝑺, 𝑱𝒖𝒏𝒆 13𝒕𝒉

𝙎𝙩𝙖𝙧 𝙑𝙔 𝘾𝙖𝙣𝙞𝙨 𝙈𝙖𝙟𝙤𝙧𝙞𝙨
The star, located 5,000 light-years away, is one of the largest and one of the most luminous evolved stars known. It is 500,000 times brighter and about 30 to 40 times more massive than the Sun.

The image on the left reveal its complex circumstellar ejecta, with arcs, filaments, and knots of material formed by the massive outflows. This image provided the first evidence that the brightest arcs and knots were created during several outbursts.

The image at right was made with polarizing filters to show how the dust ejected by the star is distributed in three-dimensional space. The light from the star becomes polarized when it is reflected off the dust. The dust formed around the star and was driven into space.

The numerous arcs,loops& knots were moving at different speeds and in various directions,confirming they were produced from separate events and from different locations on the star.

The prominent arc to the northwest or upper right in the image is moving at 102,700 miles an hour (165,600 kilometers an hour), and was ejected about 500 years ago. The knots near the center of the image are traveling at 80,400 miles an hour (129,600 kilometers an hour).