Exoplanet Alternatives & Competitors

Stellarium is a free open source planetarium for your computer.

Key Stellarium features:

User-Friendly Interface Realistic Sky Simulation Extensive Database Open Source

Open Source

Real-time 3D visualization of space.

Key Celestia features:

Open Source Realistic 3D Views Cross-Platform Extensible

Open Source

FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun. .

Key FlexiQuiz features:

Question bank Groups Courses Add media

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a faster hnsearch.

Key Hacker News Search features:

Comprehensive Search Capabilities Advanced Filtering Options Highlighting Feature Fast Performance

Open Source

Space Engine is a realistic virtual Universe you can explore on your computer.

Key Space Engine features:

Realistic Simulation Exploration and Discovery VR Support Modding Community

Mitaka is software for visualizing the known Universe with up-to-date observational data and...

Key Mitaka features:

High-Quality Visualization Educational Resource User-Friendly Interface Real-Time Observation

SourceForge presents the Solar Model project. Solar Model is an open source application.

Key Solar Model features:

Open Source Cost-Effective Community Support Customizability

3D model of the Solar System and night sky in real time.

Key Solar System Scope features:

Educational Resource User-Friendly Interface Detailed Visualizations Accessibility

KStars is a Desktop Planetarium for KDE.

Key KStars features:

Open Source Cross-Platform Comprehensive Features Educational Tool

Universe Sandbox ² is a physics-based space simulator where you can simulate Events and even break physics and friction with certain features.

Key Universe Sandbox features:

Realistic Physics Simulation Interactive Experience Educational Tool Stunning Visuals

Pioneer is a space adventure game set in the Milky Way galaxy at the turn of the 31st century.

Key Pioneer features:

Open Source Freedom of Exploration Moddability Realistic Physics

Open Source

The WorldWide Telescope (WWT) is a Web 2.

Key WorldWide Telescope features:

Comprehensive Data Educational Tool High-Resolution Imagery Multi-Platform Access

StarCalc is the fastest professional astronomy planetarium & star mapping program for Windows...

Key StarCalc features:

User-friendly Interface Extensive Database Customizability Freeware

A game of gravity. Go crash some planets!