|
|
|
Milky Way
Dragon’s lair – Daniel Thomas Gum | Mungo, NSW, Australia ‘This is my favourite nightscape image to date. Mungo is a 12-hour drive away from my home in Sydney, but those Bortle 1 skies are the best I’ve ever witnessed and photographed at night. I had perfect conditions for three straight nights, with really good seeing throughout.
The moment I came upon this scene, I knew exactly what I wanted to the name the image. It was otherworldly – think Game of Thrones – and it lined up perfectly for how I wanted to capture it. Large, jagged walls framed a winding path leading to a centred spire to the west.
There was only ever going to be one way to do it justice and that was as a multi-layered Milky Way panorama. I planned this image using PhotoPills during the day, but in post-processing, I decided to use the blue-hour blend for the foreground with a tracked sky for the cleanest possible image’
Photograph: Daniel Thomas Milky Way photographer of the year
Milky Way photographer of the year 2021 – in pictures The annual Milky Way photographer of the year competition features the best photos of our galaxy as selected by Capture the Atlas. This year’s images were taken from around the world by 25 photographers of 14 different nationalities. The best time to see and photograph the Milky Way is usually between May and June with maximum hours of visibility on both hemispheres G Fri 28 May 2021 07.00 BST
https://www.theguardian.com/artanddesign/gallery/2021/may/28/
Hubble Team Breaks Cosmic Distance Record NASA 3 March 2016
Hubble Team Breaks Cosmic Distance Record Video NASA 3 March 2016
This animation shows the location of galaxy GN-z11, which is the farthest galaxy ever seen.
The video begins by locating the Big Dipper, then showing the constellation Ursa Major.
It then zooms into the GOODS North field of galaxies, and ends with a Hubble image of the young galaxy.
GN-z11 is shown as it existed 13.4 billion years in the past, just 400 million years after the big bang, when the universe was only three percent of its present age.
YouTube > NASA.gov Video https://www.youtube.com/watch?v=vgQdQx3V1HY
Related
http://www.npr.org/sections/thetwo-way/2016/03/04/
A Galaxy Far, Far Away...Will Hit Ours NYT 29 May 2014
A Galaxy Far, Far Away...Will Hit Ours Video Out There | The New York Times 29 May 2014
Recently, Hubble Space Telescope measurements have confirmed that the Milky Way will collide with a sibling galaxy known as the Andromeda nebula in about two billion years.
Produced by: Dennis Overbye, Jason Drakeford and Jonathan Corum
YouTube https://www.youtube.com/watch?v=d33nQn3T4f4
Related
http://www.nytimes.com/2014/05/28/
Barred Spiral Galaxy NGC 6217
This image of barred spiral galaxy NGC 6217 is the first image of a celestial object taken with the newly repaired Advanced Camera for Surveys (ACS) aboard the Hubble Space Telescope.
The camera was restored to operation during the STS-125 servicing mission in May to upgrade Hubble.
The barred spiral galaxy NGC 6217 was photographed on June 13 and July 8, 2009, as part of the initial testing and calibration of Hubble's ACS.
The galaxy lies 6 million light-years away in the north circumpolar constellation Ursa Major.
Credit: NASA, ESA, and the Hubble SM4 ERO Team
Images from Refurbished Hubble 2009
http://www.nasa.gov/images/content/384940main_ero_teaser_ngc6217_full_full.jpg
Andromède, panier percé
Des étoiles lumineuses et vieillissantes et un arc en spirale au centre de la galaxie, c'est Andromède vue avec les yeux infra-rouges de Spitzer, un télescope spatial de la Nasa dont les images ont été montrées jeudi.
La plus étudiée des galaxies laisse apercevoir plusieurs éléments jamais observés.
Sur la vue obtenue par Spitzer, l'anneau d'Andromède semble coupé en deux morceaux –en haut à gauche et en bas à droite.
Ces entailles asymétriques ont pu être provoquées par des interactions avec les galaxies voisines.
«Parfois, des petites galaxies satellites peuvent pénétrer dans des plus grandes», explique Karl Gordon (Université d'Arizona, Tucson), responsable de l'observation. en bas à droite, «une petite galaxie a percé un trou dans le disque d'Andromède, comme un caillou perce la surface d'un étang.»
En outre, on peut voir dans la moitié gauche de la galaxie un anneau d'étoiles en formation.
Située approximativement à 2,5 millions d'années-lumière, Andromède est la galaxie en spirale la plus proche, et la seule visible à l'œil nu.
À la différence de la Voie Lactée, que nous regardons de l'intérieur, Andromède est étudiée de l'extérieur. http://www.libe.com/page.php?Article=313053&Template=GALERIE&Objet=47659 © REUTERS/NASA/JPL-Caltech/Univ. of Arizona
Andromeda
https://www.youtube.com/
https://www.npr.org/2012/06/08/
1 light year is the distance light can travel in vacuum in one year’s time.
This distance is equivalent to roughly 9,461,000,000,000 km or 5,878,000,000,000 miles.
This is such a large distance.
For comparison, consider the circumference of the Earth when measured at the equator: 40,075 km.
You can even throw in the center to center distance between the Earth and the Moon, 384,403 km, and that value would still pale in comparison to 1 light year.
Pluto, at its farthest orbit distance from the Sun, is only about 7,400,000,000 km from the center of our Solar System.
Because of its great scale, the light year is one of the units of distance used for astronomical objects.
For example, Andromeda Galaxy, which is the nearest spiral galaxy from the Milky Way, is approximately 2.5 million light years away.
Alpha Centauri, the nearest star system from our own Solar System is only 4.37 light years away. http://www.universetoday.com/39725/1-light-year/
https://www.universetoday.com/45003/
spiral galaxy USA
https://www.reuters.com/technology/space/
protogalaxy USA
https://www.nytimes.com/2020/10/01/
galaxy, galaxies UK / USA
2023
https://www.npr.org/2023/09/18/
https://www.npr.org/2023/02/22/
2022
https://www.nytimes.com/2022/09/15/
https://www.theguardian.com/science/2022/aug/24/
https://www.theguardian.com/science/2022/jul/11/
2021
https://www.npr.org/2021/03/24/
2020
https://www.nytimes.com/2020/07/10/
https://www.nytimes.com/2020/05/20/
2018
https://www.npr.org/sections/thetwo-way/2018/01/12/
2017
https://www.nytimes.com/2017/03/03/
2016
http://www.npr.org/sections/thetwo-way/2016/10/14/
http://www.npr.org/sections/thetwo-way/2016/03/04/
http://www.npr.org/sections/thetwo-way/2016/02/24/
2015
http://www.npr.org/blogs/thetwo-way/2015/05/08/
2014
https://www.youtube.com/
http://www.nytimes.com/2014/05/28/
2013
http://www.theguardian.com/science/2013/nov/04/
http://www.theguardian.com/science/2013/oct/23/
2012
http://www.guardian.co.uk/science/2012/jun/12/
https://www.npr.org/2012/06/08/
https://www.npr.org/sections/thetwo-way/2012/01/11/
ancient galaxies UK
https://www.theguardian.com/science/2022/jul/11/
massive galaxies USA
https://www.npr.org/2023/02/22/
M51 galaxy, or "Whirlpool" galaxy USA
https://www.npr.org/2021/10/26/
M87 galaxy > black hole USA
https://www.npr.org/2021/03/24/
2261 galaxy > cluster > Abell 2261 > black hole USA
It is about 2.7 billion light-years from here, in the constellation Hercules in the northern sky, not far from the prominent star Vega.
Using the standard rule of thumb, the black hole missing from the center of the 2261 galaxy should be 10 billion solar masses or more, comparable to the mightiest of these monsters known to astronomers.
The black hole at the center of the Milky Way galaxy is only about four million solar masses.
So where has nature stashed the equivalent of 10 billion suns?
One possibility is that the black hole is there but has gone silent, having temporarily run out of anything to eat.
But another provocative possibility, Dr. Lauer and his colleagues say, is that the black hole was thrown out of the galaxy altogether.
https://www.nytimes.com/2021/01/19/
https://www.nytimes.com/2021/01/19/
far-off galaxy USA
http://www.npr.org/sections/thetwo-way/2016/02/24/
early universe / primordial cosmos > giant rotating disk galaxy Wolfe Disk / ALMA J081740.86+135138.2 USA
On Wednesday, radio astronomers using the mighty Atacama Large Millimeter Array, or ALMA, radio telescope in Chile announced that they had discovered a cloud of gas located on the distant shores of time.
It appears to be an infant galaxy similar in size to its grown-up counterpart, our own Milky Way, and dates to a time when the universe was only 1.5 billion years old, one-tenth its current age.
The galaxy, known formally as ALMA J081740.86+135138.2, after its coordinates in the sky, is a giant, rotating wheel of gas, dust and faint starlight — a so-called disk galaxy — that extends 100,000 light-years across the primordial sky.
It is at least as massive as 70 or 80 billion suns, in the same weight class as the Milky Way.
https://www.nytimes.com/2020/05/20/
galaxy PKS 2014-55, 800 million light years from Earth USA
https://www.nytimes.com/2020/05/14/
galaxy known as SDSS J1354+1327, or colloquially as simply J1354 USA
https://www.npr.org/sections/thetwo-way/2018/01/12/
galaxy known as GN-z11 is the farthest galaxy ever seen from Earth, at 13.4 billion years in the past USA
http://www.npr.org/sections/thetwo-way/2016/03/04/
https://www.npr.org/2024/01/17/
http://www.npr.org/sections/thetwo-way/2016/03/04/
Galaxy EGS-zs8-1 UK / USA
http://www.npr.org/blogs/thetwo-way/2015/05/08/
http://www.theguardian.com/science/2015/may/07/
the giant elliptical galaxy Centaurus A, a relatively close neighbour of our galaxy, the Milky Way UK
http://www.guardian.co.uk/science/2011/jun/16/
Hyperactive Galaxies in the Early Universe USA
https://www.nasa.gov/mission_pages/hubble/news/
cluster of galaxies USA
http://www.nytimes.com/slideshow/2009/09/09/
blazars USA
intensely bright galaxies harboring a black hole at the center.
https://www.npr.org/2018/07/12/
https://www.theguardian.com/science/2018/jul/12/
https://www.nytimes.com/2018/07/12/
https://www.npr.org/2018/07/12/
“Pillars of Creation” captured in NASA’s James Webb Space Telescope’s near-infrared view. The pillars resemble arches and spires rising from a desert, but are filled with semitransparent gas and dust.
Credit...NASA
Webb Telescope Captures New View of ‘Pillars of Creation’ The NASA space observatory’s infrared eye finds out what’s going on within the cloudy cosmic nursery. NYT October 19, 2022
https://www.nytimes.com/2022/10/19/
galaxy > Milky Way UK / USA
2024
https://www.npr.org/2024/05/01/
2023
https://www.theguardian.com/science/2023/nov/24/
https://www.npr.org/2023/06/29/
https://www.theguardian.com/artanddesign/gallery/2023/jun/03/
2022
https://www.nytimes.com/2022/10/19/
https://www.theguardian.com/science/gallery/2022/may/19/
https://www.nytimes.com/2022/01/31/
2021
https://www.theguardian.com/science/2021/jun/11/
https://www.theguardian.com/artanddesign/gallery/2021/may/28/
2020
https://www.nytimes.com/2020/07/10/
https://www.nytimes.com/2020/04/24/
https://www.nytimes.com/2018/05/01/
https://www.theguardian.com/science/2016/sep/14/
http://www.nytimes.com/2014/05/28/science/space/andromeda-and-the-milky-way-
http://www.nytimes.com/video/science/100000002906469/colliding-galaxies.html
http://www.nytimes.com/2014/02/11/science/space/
https://www.npr.org/2012/06/08/
http://www.guardian.co.uk/science/2010/nov/18/
https://www.nature.com/articles/nature08772 - 4 March 2010
https://www.nasa.gov/mission_pages/hubble/news/hyperactive_galaxies.html - 08.05.09
https://www.theguardian.com/science/2008/may/14/
Local Void - an empty area of space bordering the Milky Way galaxy
https://www.theguardian.com/science/2023/nov/24/
on the outer edge of the Milky Way
on the fringes of the Milky Way
Pillars of Creation USA - towering mountains of gas and dust in the Eagle Nebula, one of the most productive star factories in the Milky Way galaxy.
https://www.nytimes.com/2022/10/19/
https://www.nytimes.com/2022/10/19/
neutrinos USA
Neutrinos are subatomic particles that have been compared to "ghosts slipping through the night," because they're so insubstantial and seem to barely interact with the rest of the physical world.
The Earth is constantly being bombarded by neutrinos, but most originate in the sun or in the atmosphere.
A decade ago, a particle detector known as the IceCube Neutrino Observatory managed to find neutrinos coming from outside our solar system.
https://www.npr.org/2023/06/29/
South Pole Wall
The South Pole Wall, as it is known, consists of thousands of galaxies — beehives of trillions of stars and dark worlds, as well as dust and gas — aligned in a curtain arcing across at least 700 million light-years of space.
It winds behind the dust, gas and stars of our own galaxy, the Milky Way, from the constellation Perseus in the Northern Hemisphere to the constellation Apus in the far south.
It is so massive that it perturbs the local expansion of the universe.
But don’t bother trying to see it.
The entire conglomeration is behind the Milky Way, in what astronomers quaintly call the zone of avoidance.
https://www.nytimes.com/2020/07/10/
https://www.nytimes.com/2020/07/10/
Explore more on these topics Anglonautes > Vocapedia > Space
space > galaxies > black holes
|
|
|
