Explore how Gravitational Lensing can be used to find Dark Matter. And as a bonus there’s a game at the end! Created by Shaun Hotchkiss.
Category: Astronomy
Neutron Star in my City
Fun toy that shows what it would look like to have massive space objects floating over your town. Created by Daniel Wysocki and HanGyeol Suh.
Concord Consortium List
A collection of science interactives by Concord Consortium.
Gravity with Poisson Equation
Cool look at gravity of many, many bodies, calculated on a mesh. Looks neat, too. Created by Ricky Reusser.
ScienceGameCenter
THE definitive list of science games – both digital and physical. Curated by Dr. Melanie Stegman.
Black Hole Explorer
Explore the spacetime around a black hole in your rocket ship. Created by TestTubeGames.
If the Moon Were Only 1 Pixel
A to-scale model of the solar system in a browser window. Created by Josh Worth.
Kerr Spherical Photon Orbits
An explorable explanation of the orbits around a spinning black hole. Created by Dr. Leo Stein.
Gravity Lab
Gravity simulation by the National Science & Tech Medals Foundation.
Visualizing a Black Hole
Simulates the path of light around a black hole, and you can drag your view around. Created by Antonell.








