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Kurzgesagt - Universe in a Nutshell
An interactive educational app that enables users to navigate the entire observable universe, seamlessly transitioning between different scales from subatomic particles to massive cosmic structures
verified Jul 13, 2026 · HTTP 200
CohortClass of 2026What it is
An interactive educational app that enables users to navigate the entire observable universe, seamlessly transitioning between different scales from subatomic particles to massive cosmic structures. Featuring rich visualizations and explanations of scientific concepts including viruses, cellular biology, and astronomical phenomena.
HTTP liveness
9 probes since Jun 16Jun 16Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
462/4 signal families
Liveness40%1.00
Press30%no data
GitHub20%no data
Tranco10%0.56
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