You asked about Space Exploration
21 people built something like it. 1 is gone.
That is 5% of the ones whose fate we could settle, against 23% across the whole register. 1 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2021-06-01 | YCEpsilon3 AI-Powered ERP, MES, and Test Software for Complex Operations · epsilon3.io | still up |
| 2026-09-01 | AI spacecraft operators that lives onboard the vehicle · orcaaerospace.com | still up |
| 2024-01-01 | YCLegora The AI workspace for lawyers · legora.com | still up |
| 2022-06-01 | Applied AI for The Emerging Economies · latentspace.sh | still up |
| 2024-01-01 | YCModel ML AI Workspace for Financial Services. · modelml.com | still up |
| 2015-01-01 | Paperspace is a cloud platform for building and scaling AI… · paperspace.com | acquired |
| 2024-06-01 | YCEntangl Find & resolve issues in data center engineering & operations using AI · entangl.com | still up |
| 2021-06-01 | AI-Driven Tech & Space Optimization to Scale Restaurants · onestopkitchen.com | gone |
| 2021-01-01 | YCRoutine AI-native all-in-one workspace for startups · routine.co | still up |
| 2024-01-01 | YCParadigm A reimagined workspace with AI at its core · paradigmai.com | still up |
| 2020-01-01 | AI workspace for professional gamers · lfcarry.com | still up |
| 2024-01-01 | Agent-Driven Engineering · navier.ai | still up |
| 2024-06-01 | YC&AI Collaborative workspace for patent litigators · tryandai.com | still up |
| 2024-06-01 | Workspace for your AI Agents, Build any Workflow. · dench.com | still up |
| 2026-01-01 | AI operating system for mega-scale satellite networks. · constellation.space | still up |
| 2026-06-01 | AI-native procurement services for the physical economy · spaceflow.tech | still up |
| 2025-06-01 | The AI workspace for software implementations · datafruit.ai | still up |
| 2025-01-01 | AI for air traffic control · enhancedradar.com | still up |
| 2024-09-01 | AI that gets aircraft flying faster · tryforerunner.com | still up |
| 2026-06-01 | AI Operating System for Wholesale Distribution · whitespacehq.ai | still up |
| 2024-09-01 | YCConsus The fastest and cheapest way to use AI with ITAR or CUI data. · consus.io | still up |
How this compares
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.