Spacelogs
Notes on what's overhead
Honest, specific guides to satellite passes and the moment they vanish — built on the same orbital math that runs SpacePings.
How to see the ISS tonight — and the exact second it disappears
What a good pass actually looks like, why it only shows up around dawn and dusk, and why the brightest thing in the night sky can vanish without warning, mid-sky.
From star charts to push notifications: a short history of knowing what's overhead
Heavens-Above put satellite predictions online decades before smartphones existed. NASA built its own official app. Here's how satellite tracking got to your pocket — and where SpacePings picks up.
Starlink trains: what you're seeing and when to look
A perfectly spaced line of lights crossing the sky in formation is a freshly launched Starlink batch — and it won't look like that for long.
What is a satellite fade?
The moment a satellite flies out of sunlight and into Earth's own shadow, mid-sky — explained with the actual geometry, in the actual numbers.
Why your satellite app pings too much
Most trackers alert you to everything technically overhead. Here's the actual math behind pinging only for what's worth walking outside for.