# Hoverscope

> Hover over telescope names on arXiv to instantly see specifications, launch dates, wavelengths, and survey details.

Canonical page: [https://chrome-stats.com/d/hoverscope](https://chrome-stats.com/d/hoverscope)

## Overview

- **ID:** `hoverscope`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Natalie Hogg
- **Category:** other
- **Daily users:** 29
- **Version:** 1.6.2
- **Last updated:** 2026-08-24
- **First published:** 2025-11-15
- **Size:** 190 KB
- **Data as of:** 2026-09-14
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/hoverscope/)

## Description

🔭 Hoverscope - Telescope & Satellite Information at Your Fingertips

Tired of Googling telescope specifications while reading astronomy papers? Hoverscope shows you everything you need to know with a simple hover.

✨ HOW IT WORKS
Just hover over any telescope or satellite name on arXiv (e.g., JWST, Hubble, Chandra, ALMA, Gaia) and instantly see:
• Launch date
• Wavelength coverage
• Survey area
• Location (orbit or ground)
• Current operational status
• Brief mission description

🎯 PERFECT FOR
• Astronomy researchers reading papers
• Graduate students learning about instruments
• Anyone exploring arXiv astronomy sections

📚 INCLUDED TELESCOPES
30+ major telescopes and instruments including:
• Space telescopes: JWST, Hubble, Chandra, Spitzer, Kepler, TESS, Gaia, Euclid
• Ground-based: ALMA, VLA, SDSS, Vera Rubin Observatory (LSST)
• Missions: Planck, Fermi, XMM-Newton, and more
• JWST instruments: MIRI, NIRSpec, NIRCam

🔄 ALWAYS UP-TO-DATE
The database can be easily updated with new telescopes and missions.

🎨 FEATURES
• Clean, unobtrusive tooltips
• Dark mode support
• Works on paper abstracts and full PDFs
• No data collection - completely private
• Lightweight and fast

🌟 OPEN TO CONTRIBUTIONS
Want to add a telescope? Found outdated information? Contributions welcome!

Perfect for anyone who reads astronomy papers and wants quick access to telescope specifications without breaking their reading flow.

## Rankings

- #21,035 — Overall
- #36 — hover
- #151 — launch
- #202 — cover

## Permissions and access

### Permissions

- `storage`

### Host permissions

- `https://raw.githubusercontent.com/*`

### Content script matches

- `arxiv.org`
- `www.arxiv.org`
- `astrochristian.github.io`
- `benty-fields.com`
- `www.benty-fields.com`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/hoverscope)