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NSTMF Gravity
An educational web application developed by the National Science and Technology Medals Foundation that lets users explore gravitational concepts through interactive simulations
verified Jul 16, 2026 · HTTP 200
CohortClass of 2026What it is
An educational web application developed by the National Science and Technology Medals Foundation that lets users explore gravitational concepts through interactive simulations. Experience orbital dynamics, collision physics, and escape velocity calculations in an engaging, hands-on learning environment.
HTTP liveness
22 probes since May 23May 23Jul 16
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026Back onlineAlive · 200 OK
- Jun 13, 2026Probe inconclusiveTimeout
- May 23, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
442/4 signal families
Liveness40%1.00
Press30%no data
GitHub20%no data
Tranco10%0.43
Weighted observed activity · updated Jul 15
Cohort survival · Class of 2026weekly
567 products launched in 2026 · 100% still active
567 active0 sunset
Still active
100%
Median lifespan
4.9y