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47 million galaxies: A sunning new view of our universe
Monday, April 20, 2026 by Russ Scritchfield
An international team has unveiled a sweeping three dimensional map of the cosmos that brings the distribution of galaxies into sharp relief across much of observable space. Built from the Dark Energy Spectroscopic Instrument, the map charts where galaxies are located and how their positions change ...
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Galaxies previously unseen discovered with help from physicist
Tuesday, March 24, 2026 by Richard Harris
I chase photons that perhaps left their homes before our oceans found their tides (if you believe photos actually travel anyway). Those photons slide into a sensor as if they are shy travelers, and if I treat them with patience they will draw a picture that was always there, just hidden under the no...
MOTHRA telescope 1,140-lenses to map the cosmic web
Friday, March 13, 2026 by Trey Abbe
A new astronomical instrument is being developed to capture the faint glow of the cosmic web with a scale and simplicity that set it apart. Built as an array of 1,140 individual objective lenses working together, the system trades a single large mirror for many smaller optics, enabling exceptional s...
Tom Osypowski: Mastering dobsonian tracking hardware for stargazers
Monday, October 27, 2025 by Richard Harris
Tom Osypowski has significantly impacted the world of Dobsonian telescope tracking through his innovative Equatorial Platforms. In his journey from building his first platform in 1984 to developing cutting-edge designs today, Osypowski has transformed how Dobsonian telescopes are used for both visua...