Romain Simon

SpaceSim is a free browser-based universe simulator. Travel through a UTC-driven 3D Solar System, inspect source-linked scientific state, observe Earth from a pinned NASA ISS trajectory, build procedural stars, visit compact objects, and collect postcards. Scientific, reconstructed, representative, procedural, experimental, and promotional content are clearly labeled. No signup required.

Largest cross-platform directory of AI agent skills. 100K+ skills, 30+ platforms, security audits on every listing. One search, every platform.

Running a Marathon? a 10K? Just connect your Strava or Garmin account & tell us your next goal to get a 100% personalized training plan to reach your running goals based on your level and history. Run Plan lets you plan for multiple goals up to 18 months ahead, adapts in real time from your Strava and Garmin data, at a price lower than most static training apps. And your daily workout is ready automatically on your Garmin.