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Galaxies are not scattered randomly across the universe. They gather together not only into clusters, but into vast interconnected filamentary structures with gigantic barren voids in between. This “cosmic web” started out tenuous and became more distinct over time as gravity drew matter together.
Astronomers using NASA's James Webb Space Telescope have discovered a thread-like arrangement of 10 galaxies that existed just 830 million years after the big bang. The 3 million light-year-long structure is anchored by a luminous quasar – a galaxy with an active, supermassive black hole at its core. The team believes the filament will eventually evolve into a massive cluster of galaxies, much like the well-known Coma Cluster in the nearby universe.
This deep galaxy field from Webb’s NIRCam (Near-Infrared Camera) shows an arrangement of 10 distant galaxies marked by eight white circles in a diagonal, thread-like line. (Two of the circles contain more than one galaxy.) This 3 million light-year-long filament is anchored by a very distant and luminous quasar – a galaxy with an active, supermassive black hole at its core. The quasar, called J0305-3150, appears in the middle of the cluster of three circles on the right side of the image. Its brightness outshines its host galaxy. The 10 marked galaxies existed just 830 million years after the big bang. The team believes the filament will eventually evolve into a massive cluster of galaxies.
Image credit: NASA, ESA, CSA, Feige Wang (University of Arizona), and Joseph DePasquale (STScI)
#NASA #STScI #jwst #jameswebbspacetelescope #NASAGoddard #NASAMarshall #galaxy #quasar #supermassiveblackhole
IMG_6187GPPcSq(lft&mdl&rgt)3exHDRCompo
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Like shiny flakes sparkling in a snow globe, over 100,000 stars whirl within the globular cluster M13, one of the brightest star clusters visible from the Northern Hemisphere. Located 25,000 light-years from Earth this glittering metropolis of stars in the constellation Hercules can be spotted with a pair of binoculars most easily in July. The English astronomer Edmond Halley, best known for recognizing the periodicity of the comet that bears his name, discovered M13 in 1714. When Charles Messier added M13 to his catalog in 1764, he was convinced that the nebulous object did not contain any stars at all. Because they are so densely packed together, the cluster’s individual stars were not resolved until 1779. Near the core of this cluster, the density of the stellar population is about a hundred times greater than the density in the neighborhood of our sun. These stars are so crowded that they can, at times, run into each other and even form a new star. The resulting “blue stragglers” appear to be younger than the other stars in their immediate vicinity and are of great scientific interest to astronomers.
This was slimy to touch and the open cap was 7cms across. Growing near Sycamore. Maybe a member of the Lepista family?
Manor Estate Stafford UK 3rd January 2016
The City of London skyscraper cluster as photographed from Westferry Circus/West India Dock near Canary Wharf
After 30-some years it finally has the correct rear derailleur and ridiculously large spoke protector.
The galactic core area of the northern summer Milky Way over the Blakiston Valley and Blakiston Creek in Waterton Lakes National Park, Alberta on a July night. Sagittarius is at left over Vimy Peak, with the bright Sagittarius Starcloud over the valley, with the Messier 6 and 7 star clusters low and left of centre. Scorpius with reddish Antares is at right. The pink Lagoon Nebula, M8, is at top, and the globular cluster M22 is at upper left. The dark Pipe Nebula is at top centre.
This is a blend of tracked exposures for the sky and untracked exposures for the ground: a stack of 4 x 2-minute tracked at f/2.8 and ISO 1600 for the sky, blended with a stack of 2 x 5-minute untracked at f/4 and ISO 1600 for the ground, with LENR on for reducing thermal speckling this warm night. A tracked 2-minute exposure through an Kase/Alyn Wallace Starglow filter adds the star glow effect. An additional 8-minute exposure at ISO 400 and f/8 taken early in the evening during blue hour adds some illumination to the distant mountains. However, the majority of the landscape comes from untracked exposures taken just before the tracked ones when the sky was dark, with illumination just from starlight with a more normal colour balance.
Forest fire smoke moving in added some haze and lowered contrast. The bright light is the Prince of Wales Hotel, and the light to the left is from the golf course clubhouse.
The sky tracker was the Star Adventurer Mini which worked perfectly. The camera was the Canon ESO Ra and lens the Canon 15-35mm RF at 35mm.
Exotic! Coral like... a strange one! The tree is very large and tall but the flowers all hang from stems 10 feet or so from the ground so it feels like they are growing on a vine attached to the tree rather than the tree itself! These are called cauliflorous... flowers that grow from the trunk.
"In the rainforests of South American, fruits of the Cannonball tree sway and clash in the wind, creating loud noises like artillery fire! These fruits really do resemble big, rusty cannonballs as they hang in clusters on the side of the tree attached to rope like tangles that emerge directly from the trunk.
The Cannonball tree’s beautifully complex and fragrant flowers resemble huge orchids. At night the flowers become particularly pungent in order to attract swift-flying pollinators. This particular Cannonball tree was collected in 1913 at Jamaica’s Hope Gardens and has flourished at Fairchild since it was planted here in 1938."
Couroupita guianensis, whose common names include Ayahuma and the Cannonball Tree, is an evergreen tree allied to the Brazil Nut (Bertholletia excelsa), and is native to tropical northern South America and to the southern Caribbean. In India it has been growing for the past two or three thousand years at least, as attested by textual records; hence it is possible that it is native to India also. It's part of the family Lecythidaceae and grows up to 25m (82ft) in height. The "Cannonball Tree" is so called because of its brown cannon-ball-like fruits. The majority of these trees outside their natural environment have been planted as a botanical curiosity, as they grow very large, distinctive flowers. Its flowers are orange, scarlet and pink in color, and form large bunches measuring up to 3m in length. They produce large spherical and woody fruits ranging from 15 to 24cm in diameter, containing up to 200 or 300 seeds apiece.
Cannonball Tree, Couroupita guianensis
Fairchild Tropical Botanic Garden, Miami, FL
Cluster of beautiful pale apricot lilies, Eileen's lilies. Regina, Saskatchewan, Canada. 13 July 2021.
Taken w/ Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D3300.
77 lights x 30 s @ ISO 1600, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop
Mushrooms growing on a downed limb. Cluster is about 8 to 10 cm tall.
Invited and featured as "Photo of the Day" on De Animorum Immortalitate for 9 July, 2010.
Seen from Lime Street, City of London; the City is getting more and more of these - another 11 are set to be completed by 2030,
www.timeout.com/london/news/the-city-of-london-will-have-...
A cluster of palms reflect their image on the pond at White City Park in Fort Pierce, Florida. Prints, and much more, are available on my website at www.tom-claud.pixels.com.
M62 (NGC 6266) is the globular cluster that is farthest south in Ophiuchus. Stellarium refers to it as the Flickering Globular Cluster, though I'm not sure why. The only flickering was because it was so low in my sky that it kept disappearing behind data lines and branches.
Shot with LRGB filters from my backyard in Long Beach, CA.
L: 27 30 s exposures
R: 20 60 s exposures
G: 16 60 s exposures
B: 17 60 s exposures
All taken with an Atik 414-EX mono camera on a Celestron Edge HD 925 at a focal length of 1530 mm. LRGB filters are from Optolong.
Pre-processing in Nebulosity; registration, stacking, channel combination, and processing in PixInsight; final touches in Photoshop.
A detail from around a window in the Korean Presbyterian church in Niagara Falls.
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