Where does the data come from?
We maintain a comprehensive database with thousands of data points, carefully organized to present launch information in a clear and meaningful way.
Our sources include Wikipedia, official launch provider websites, social media channels, and news outlets. Data is refreshed multiple times daily through both automated systems and manual curation.
How current is the data?
Launch schedules shift and new missions get announced all the time, so we refresh the database multiple times a day, through a mix of automated systems and hands-on curation. Statistics, charts, and upcoming launches all recompute with the latest data, and pages that are still changing show how recently their numbers last moved.
Is the catalog complete?
We aim to build a comprehensive catalog of all orbital launches: past, present, and planned. That said, we prioritize current launches and the evolving space industry over historical completeness.
Areas we're actively expanding:
- Suborbital flights
- Test hops like Starship prototypes and Blue Origin New Shepard flights. These are crucial for industry development and we're adding the most notable ones.
- Astronaut data
- We have astronaut data for many crewed missions (Vostok, Soyuz, Mercury-Redstone) and are working to complete the remaining programs, including all Space Shuttle missions.
- Mission details
- With fewer than 7,000 orbital launches in 60+ years, every flight matters. We prioritize detailed coverage for significant missions while ensuring basic payload and technical data exists for all launches.
How accurate is the data?
We take accuracy seriously and cross-reference multiple sources whenever possible. The data should be reliable for general reference and staying informed about launches.
We can't guarantee 100% accuracy. Source data sometimes contains errors, and there's always a lag between real-world events and our updates.
Important: If you're making financial or other significant decisions based on launch data, please verify with primary sources. Cross-check with official launch provider announcements.