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    • 3D visualization of simulated globular clusters in a galaxy
      HTML
      0000Updated Jun 27, 2025Jun 27, 2025
    • Simulate a map of globular clusters as seen from a star within the galaxy.
      HTML
      0000Updated May 17, 2025May 17, 2025
    • Simple Drake equation calculator. Estimate each term of the equation, and see how your estimate of the number of high tech civilizations in our galaxy changes.
      HTML
      0000Updated Mar 17, 2025Mar 17, 2025
    • JavaScript
      0002Updated Oct 19, 2024Oct 19, 2024
    • website:
      JavaScript
      0105Updated Oct 19, 2024Oct 19, 2024
    • JavaScript
      0001Updated Aug 31, 2024Aug 31, 2024
    • Calculate lightcurves of Cepheid stars
      HTML
      0000Updated Jun 10, 2024Jun 10, 2024
    • Stellar main sequence lifespan calculator
      HTML
      0000Updated Jun 2, 2024Jun 2, 2024
    • A VR flythrough of our stellar neighborhood, starting from an Earth-centric perspective where north is up.
      HTML
      0000Updated May 22, 2024May 22, 2024
    • Check the flat-Earth myth for internal consistency by using sun altitude-angle measurements to calculate the Earth-sun distance from a flat-Earth.
      NetLogo
      0000Updated Feb 3, 2024Feb 3, 2024
    • HTML
      0000Updated Jul 5, 2023Jul 5, 2023
    • Simulation of light travel time - and redshift - in a uniformly expanding universe
      JavaScript
      10012Updated Mar 5, 2023Mar 5, 2023
    • JavaScript
      01013Updated Mar 5, 2023Mar 5, 2023
    • JavaScript
      12612Updated Jan 5, 2023Jan 5, 2023
    • Visualization of stellar structure
      JavaScript
      0000Updated Jan 4, 2023Jan 4, 2023
    • 0000Updated Jun 24, 2022Jun 24, 2022
    • 3D exploration of the cosmic web of galaxies
      JavaScript
      0000Updated Mar 23, 2022Mar 23, 2022
    • H5P-test

      Public
      testing setup of standalone H5P interactives
      CSS
      0000Updated Nov 30, 2021Nov 30, 2021
    • Orbit simulator in a flat galactic plane with spherical dark matter distribution
      JavaScript
      0200Updated Nov 24, 2021Nov 24, 2021
    • Simplified demonstration of absorption and emission line spectra
      HTML
      0000Updated Aug 31, 2021Aug 31, 2021
    • Transform actual spectra by Doppler shifting and adding extinction.
      Jupyter Notebook
      0000Updated Aug 31, 2021Aug 31, 2021
    • Build arbitrary spectra with thermal emission, line emission, and line absorption.
      HTML
      1000Updated Aug 31, 2021Aug 31, 2021
    • Re-implementation of the NAAP Spectrum Explorer tool
      HTML
      1000Updated Aug 15, 2020Aug 15, 2020
    • Simulation of gravitational lensing by galaxy clusters
      Jupyter Notebook
      0100Updated Jul 30, 2020Jul 30, 2020
    • JavaScript
      0000Updated Jul 20, 2020Jul 20, 2020
    • JavaScript
      0000Updated Jul 13, 2020Jul 13, 2020
    • 0000Updated Jun 12, 2020Jun 12, 2020