# Signal: Observatory Archive — Telescopes & Their Discoveries

> Telescopes & Their Discoveries (iPhone/iPad app by Raymond Verrier.)

- Source: https://appshunter.io/ios/app/signal-observatory-archive/id6760983406 (this page in markdown: same URL + `.md`)
- Developer: [Raymond Verrier](https://appshunter.io/developer/1877241929)
- Category: Reference, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 4 MB
- Languages: American English
- Released: 2026-05-28
- Data updated: 2026-07-22
- User reviews in markdown: https://appshunter.io/ios/app/signal-observatory-archive/id6760983406/reviews.md

## What is Signal?

Signal is a curated archive of the discoveries that changed what we know about the universe - told through the observatories that made them.

Ten channels. Ten telescopes. Each one represented by a television set from the era it was built.

The 1963 Arecibo dish sits in a walnut-cabinet set from the same year it was carved into a Puerto Rican sinkhole. The 1990 Hubble telescope sits in a widescreen CRT from the same year it launched - flawed mirror and all. The ELT, still under construction on a mountaintop in Chile, sits in a brushed aluminum panel that doesn't quite exist yet. The DSA, 1,650 radio dishes going up in the Nevada desert, sits in a flat panel of its own - on the shelf before its first dish has even gone up.

Tap any television to open its channel.

WHAT'S INSIDE

Each channel has four tabs:

Archive – A curated collection of highlight entries for that telescope. The night the universe stopped making sense. The mirror that was wrong. The first photograph of another world. The sinkhole that became a telescope. One hundred entries across ten observatories, written to be read rather than skimmed.

About – The history of the telescope: who built it, why, how much it cost, what it replaced, and what replaced it.

Science – What the telescope actually does and what it found. Written for people who are curious, not for people who already have a PhD.

Live Feed – A direct link to the telescope's current webcam or live stream, where one exists.

THE OBSERVATORIES

Arecibo (1963–2020) – Puerto Rico
CFHT (1979) – Mauna Kea, Hawaii
VLA (1980) – Socorro, New Mexico
Hubble (1990) – Low Earth Orbit
VLT (1998) – Paranal, Chile
Subaru Telescope (1999) – Mauna Kea, Hawaii
ISS (2000) – Low Earth Orbit
ALMA (2011) – Chajnantor Plateau, Chile
ELT (2028*) – Cerro Armazones, Chile
DSA (2029*) – Spring Valley, Nevada

NARRATOR

Every entry can be read aloud. The intended voice is Daniel (English UK), available as an enhanced download in iOS Settings → Accessibility → Spoken Content → Voices. Any installed English voice works.

Explore every channel, and Signal has one more thing to show you.

The Arecibo channel is free. Unlock all ten for $1.99.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock All Channels | $1.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-07-14

This update lands on the new moon - the darkest sky of the month, and the best night to look up. Fitting timing for the newest addition to the archive: the Deep Synoptic Array. I added the DSA entries after reading about this amazing telescope in the news recently. Thanks for all of your support and feedback. As a solo developer, it means a lot!

Also - explore every channel, and Signal has one more thing to show you.

### 1.0 — 2026-05-29

No release notes.

## More apps by Raymond Verrier

- [DryWeather](https://appshunter.io/ios/app/dryweather/id6759182323)
- [Not Punny PRO](https://appshunter.io/ios/app/not-punny-pro/id6759263135)
- [The Experiment: US History](https://appshunter.io/ios/app/the-experiment-us-history/id6760737147)
- [Granite: NH48 4000' Peaks](https://appshunter.io/ios/app/granite-nh48-4000-peaks/id6760983576)

All apps by Raymond Verrier: https://appshunter.io/developer/1877241929

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-22.*