Category:Planetary Science
Earth, Our Home Planet
- Among the Stars, Galaxies, Planets and Mysteries of the Universe
1.2-million-galaxies-map-slice.jpg (800 × 600 pixels, file size: 326 KB, MIME type: image/jpeg)
Each dot in the picture at top indicates the position of a galaxy.
The image covers about 1/20th of the sky, a slice of the universe 6 billion light-years wide (thus we see some of these galaxies 6 billion years into the past), 4.5 billion light-years high, and 500 million light-years thick.
http://earthsky.org/space/1-2-million-galaxies-in-3d
July 2016 - The largest three-dimensional map of our universe so far. It’s a map of 1.2 million galaxies over a quarter of the sky and over a volume of space of 650 cubic billion light-years.
Sloan Digital Sky Survey -- https://www.sdss3.org/
http://en.es-static.us/upl/2016/07/1.2-million-galaxies-cross-section-e1468508533423.png
Subcategories
This category has the following 13 subcategories, out of 13 total.
Pages in category "Planetary Science"
The following 54 pages are in this category, out of 54 total.
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- Earth and Space, Politics
- Earth at Night
- Earth Day Summit - April 22 2021
- Earth from NASA
- Earth Imaging-New Space
- Earth Right Now
- Earth Science
- Earth Science Eco-Fields
- Earth Science Research from Space
- Earth Science Vital Signs
- Earthrise
- Ecolivia
- Environmental Studies Online
- Extravehicular activity -- Space Walk -- ISS
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Media in category "Planetary Science"
The following 9 files are in this category, out of 344 total.
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- A Brief History of the Future - 2s.jpg 448 × 309; 70 KB
- A Flash of Green by John D. MacDonald.jpg 400 × 400; 55 KB
- A View of the Earth and Moon from Mars.jpg 720 × 890; 3 KB