Quick links (Astrophysics and Cosmology)
Dynamics and Astrophysics of Galaxies
Frank Van Den Bosch Lectures
Fluid dynamics
Numerical methods for astrophysical hydrodynamics
Other important topics
The physics of stars by Glatzmaier
Fundamentals of Astrophysics by Dipankar Bhattacharya
Radiative Processes by Cole Miller
Cosmology
TASI Lectures: Introduction to Cosmology
Lecture notes by Hannu Kurki-Suonio
A practical guide to Basic Statistical Techniques for Data Analysis in Cosmology and [PPT]
Fisher Matrices and Confidence Ellipses
George Djorgovski's lectures on "The Evolving Universe"
George Djorgovski's lectures on "Galaxies and Cosmology"
N-body simulation
Writing a PM (particle mesh) code - https://astro.uchicago.edu/~andrey/talks/PM/talk.pdf
N-body or particle simulation methods - https://www.cs.cmu.edu/afs/cs/academic/class/15850c-s96/www/nbody.html
Simulations of structure formation in the universe
https://ned.ipac.caltech.edu/level5/March03/Bertschinger/Bert_contents.html
Astronomy
5 Ways to Find a Planet (Exoplanets) | Gaia | NED (NASA/IPAC Extragalactic Database) | Multiwavelength Milky Way
Astronomical / Cosmological Surveys and Telescopes to answer some of the fundamental questions
VLA | ALMA | TMT | MAGIC Telescopes | IceCube | HST | JWST | Roman space telescope
VLT Survey Telescope (VST) | eROSITA | Athena | DES | CHIME