Alignment Of The Elements

Focus on a small portion of the Milky Way, above Canadian forest, August 2019, showing North American nebula and part the Cygnus constellation. Taken with Nikon D750, 50mm, ISO1600, 10s. I did not have a tripod, it was tricky to keep the camera still.

Mont-Blanc and Aiguille du Midi, white & cold majesty contrasting with warm fall colors over Chamonix - end of October 2020, while France is locked down again

Milky Way over Canadian Forest, August 2019.

2022 May 29

Simulation TNG50: A Galaxy Cluster Forms Video Credit: IllustrisTNG Project; Visualization: Dylan Nelson (Max Planck Institute for Astrophysics) et al. Music: Symphony No. 5 (Ludwig van Beethoven), via YouTube Audio Library

Explanation: How do clusters of galaxies form? Since our universe moves too slowly to watch, faster-moving computer simulations are created to help find out. A recent effort is TNG50 from IllustrisTNG, an upgrade of the famous Illustris Simulation. The first part of the featured video tracks cosmic gas (mostly hydrogen) as it evolves into galaxies and galaxy clusters from the early universe to today, with brighter colors marking faster moving gas. As the universe matures, gas falls into gravitational wells, galaxies forms, galaxies spin, galaxies collide and merge, all while black holes form in galaxy centers and expel surrounding gas at high speeds. The second half of the video switches to tracking stars, showing a galaxy cluster coming together complete with tidal tails and stellar streams. The outflow from black holes in TNG50 is surprisingly complex and details are being compared with our real universe. Studying how gas coalesced in the early universe helps humanity better understand how our Earth, Sun, and Solar System originally formed.

∞ Source: apod.nasa.gov/apod/ap220529.html

Quiver Tree Forest… Despite the light pollution of neighboring city Keetmanshoop, the Milky Way was bright enough so one can say it’s a bortle 1-2 sky, which is actually the case everywhere in Namibia. (gear in tags, settings and process here )

eg_astrophotography

Milky Way at Darkan, Western Australia

Nikon d5500 - 50mm + Hoya Red Intensifier filter - ISO 3200 - f/2.5 - Foreground: 8 x 13 seconds - Sky: 21 x 30 seconds - iOptron SkyTracker

Clearest image of Phobos ever taken, Moon of Mars

humpback whale series by cam grant

Heart and Soul Nebulae

Bright and cold night sky captured with my good old galaxy S21, from Aosta, Italy. We can see Mars, Orion and the Pléiades.