--- title: Galaxies & Cosmology description: Cosmology is the study of the origin, evolution, and ultimate fate of the universe. Learners will understand galactic structure, dark matter, dark energy, and the cosmic microwave background radiation. category: sciences subcategory: astronomy-and-astrophysics difficulty: beginner, intermediate, advanced url: /subject/galaxies-and-cosmology --- # Galaxies & Cosmology Cosmology is the study of the origin, evolution, and ultimate fate of the universe. Learners will understand galactic structure, dark matter, dark energy, and the cosmic microwave background radiation. ## Available Resources 4 Books • 1 Courses • 4 Websites ## Websites ### 1. Lambda Archive NASA's Legacy Archive for Microwave Background Data Analysis hosts the released maps, power spectra, likelihood codes, and simulation tools from COBE, WMAP, Planck, and ground-based CMB experiments, so you can work with the actual cosmological datasets rather than summaries. **Difficulty:** Beginner | **Price:** Free **Link:** https://lambda.gsfc.nasa.gov/ **Tags:** cmb, cosmology-data, nasa, wmap, planck ### 2. ned.ipac.caltech.edu NASA/IPAC Extragalactic Database (NED) is a centralized, cross-referenced database of extragalactic objects, serving as a go-to resource for galaxies and cosmology. It provides summarized and downloadable data—positions, redshifts, multi-wavelength photometry, spectra, images, and bibliographic references—plus search and visualization tools to explore and compare objects across surveys. **Difficulty:** Intermediate | **Language:** English | **Price:** Free **Link:** https://ned.ipac.caltech.edu **Tags:** websites, science-research, astronomy--space ### 3. ESA Planck Mission Official European Space Agency site for the Planck space telescope, which mapped the cosmic microwave background. It explains the mission and instruments and links to all-sky maps, data releases and papers, helping readers understand how Planck measured the age and composition of the universe. **Difficulty:** Intermediate | **Language:** English | **Price:** Free **Link:** https://planck.esa.int **Tags:** cosmic-microwave-background, cosmology, planck-mission, space-telescopes, esa ### 4. sdss.org SDSS.org is the official portal for the Sloan Digital Sky Survey—a large imaging and spectroscopic survey of galaxies, quasars, and the universe’s large-scale structure. It offers project information, data releases, and data-access tools (e.g., SkyServer, catalogs, spectra) plus tutorials and resources for learning galaxies and cosmology. **Difficulty:** Intermediate | **Language:** English | **Price:** Free **Link:** https://sdss.org **Tags:** websites, science-research, astronomy--space ## Courses ### 1. The Early Universe (MIT 8.286) **Author:** Alan Guth Modern cosmology, beginning with classical expanding-universe models and moving to the particle physics of the hot early universe and cosmic inflation. Includes 23 lecture videos by the originator of inflationary cosmology, slide notes, problem sets, and exams with solutions. **Difficulty:** Intermediate | **Price:** Free **Link:** https://ocw.mit.edu/courses/8-286-the-early-universe-fall-2013/ **Tags:** cosmology, big-bang, cosmic-inflation, early-universe, expanding-universe ## Books ### 1. Introduction to Cosmology **Author:** Barbara Ryden An undergraduate textbook deriving the Friedmann equations, then applying them to the expansion history, nucleosynthesis, recombination, the microwave background, and structure formation. Requires calculus and basic physics; leaves you able to compute distances and ages for a given cosmological model. **Difficulty:** Intermediate | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/0805389121?tag=edmonddante07-20 **Tags:** books, science-research, astronomy--space ### 2. Galaxies in the Universe **Author:** Linda S. Sparke, John S. Gallagher III An upper-undergraduate survey of the Milky Way, stellar populations, spiral and elliptical systems, galaxy dynamics, groups and clusters, and galaxy evolution. Problem sets emphasize order-of-magnitude estimates, so you learn to reason quantitatively about observed galaxy properties. **Difficulty:** Intermediate | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/0521597404?tag=edmonddante07-20 **Tags:** books, science-research, astronomy--space ### 3. Cosmology **Author:** Steven Weinberg A graduate-level treatment that derives the expansion history, cosmological perturbation theory, microwave background anisotropies, and inflation from general relativity, with the algebra shown rather than quoted. Assumes fluency in tensor calculus and field theory before the first chapter. **Difficulty:** Intermediate | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/0198526822?tag=edmonddante07-20 **Tags:** books, science-research, astronomy--space ### 4. A Brief History of Time **Author:** Stephen Hawking Hawking's popular account of spacetime, the expanding universe, the big bang, black holes, and the search for a unified theory, written without equations. Gives conceptual vocabulary for cosmology but no ability to calculate; treat it as orientation. **Difficulty:** Intermediate | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/0593025105?tag=edmonddante07-20 **Tags:** books, science-research, astronomy--space --- *This content is part of Dantes.io - Your Treasure Map to Knowledge* *Curated by humans at Dantes.io. Personal study use welcome; republishing this curation requires permission (team@dantes.io).* View this page online: https://dantes.io/subject/galaxies-and-cosmology