The Best Robert’s Rocket Project Alternatives in 2026

Half Cat Rocketry shares open-source liquid rocket motor information and resources for amateur rocketry.

RocketPy provides software and information for rocket flight simulation.

My Balsa & Glass Workshop documents scratch-built balsa radio-controlled models and workshop projects.

QPaths offers physics and science learning pathways for amateur and experienced learners and provides a community link.

Av8n explains perceptions, procedures and principles of flight through 20 chapters and more than 200 illustrations.

PicaSim provides information, media, and downloads for a radio-controlled flight simulator.

The OpenRocket wiki provides collaboratively written documentation for the open-source model rocket simulator.

ThrustCurve provides model and high-power hobby rocket motor data, including manufacturer specifications and certified performance.

OpenRocket is model rocket simulation software with a download and information about supported operating systems.

Ye Olde Rocket Forum hosts discussions and recent activity about rocketry.

The National Association of Rocketry provides information and resources for hobby rocket enthusiasts.

Built with Three.js, this page presents an interactive animation that depicts an atom.

PicaSim simulates flight for radio-controlled aircraft, with gliders and other aircraft types listed among its repository topics.

openMotor simulates internal rocket motor ballistics, estimating chamber pressure and thrust from propellant, grain geometry, and nozzle details.

This repository contains code for the ThrustCurve.org site, which began as a collection of simulator files based on actual rocket motor firing data.

MathNet lets users browse and search more than 30,000 Olympiad-level problems from 47 countries in 17 languages.

Datasheet4U searches datasheets for more than 900,000 electronic components, with specifications and PDF documents.

Jacobs Rocketry documents experimental rocketry using sugar propellant.

RecentlyExtinctSpecies documents recently extinct, missing, and other species in an online database.

EMRap provides medical education resources including courses, procedures, imaging, and videos.

FlowingData publishes articles, projects, and learning resources about data visualization and statistics.

Passmedicine offers online revision for the 2026 UCAT, with resources for exam preparation.

IBM SkillsBuild provides free AI and technology teaching resources, including lesson plans, educator training, and toolkits.

OneZoom lets visitors browse an interactive tree of life, with suggested starting points for groups of organisms.