# Astronomers discover a giant, rocky 'mega-Earth' 23 times more massive than our planet

> **Open Intelligence Dossier** · First detected: 2026-08-19 18:07 UTC · Category: Science

## Executive Summary
10 news sources are covering this Science story right now — PULSE is tracking how fast it spreads.

## Intelligence Brief
"Astronomers discover a giant, rocky 'mega-Earth' 23 times more massive than our planet" is generating significant coverage in the Science category, with 12 articles from 10 distinct sources tracked by PULSE so far.


Outlets currently covering the story include BBC Sky at Night Magazine, The Economic Times, Newsweek and Yahoo. PULSE measures a story's velocity from how quickly new articles appear and how many independent newsrooms join the coverage.


This brief was generated by PULSE's extractive engine from coverage metadata only. The latest headlines from every source are listed below; the velocity chart shows how the story is developing in real time.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| BBC Sky at Night Magazine | Astronomers found a 'mega Earth' that shouldn't exist. This alien world is breaking the rules of planet building | [Source Link](https://news.google.com/rss/articles/CBMiaEFVX3lxTFBfTU9BT1l0MTk5WmlwWVhsTGhSeXZFWGlMaXdrMXU1MllHT2x3bXJtZGF0bXdROWkxemxtZERYY1FZdnFEZEF3UEl0QU5hWnkxcGpGRGRXZVdVQlRkbGpNb2F1RHplTnlC?oc=5) |
| The Economic Times | Scientists found a ‘Mega-Earth’ 2.5 times the size of Earth with a core 23 times its mass; but it didn’t d | [Source Link](https://news.google.com/rss/articles/CBMilANBVV95cUxQWi1KYXEyZm42QXM3cmpuS245eFZ5V1YtUkVtTUZNel9LYmNwVUU0RzFHSDlOYUJodFhZOW9vU0xKbTNuU1RhQUNzcmxzV3Nma1psZVFNSnoyNUhfVGlxTHBURkFuN19DZVI0S2VzdGlaOFVCcjVfN29FYUoyNVJXb252OXlQYXRLUHI2ejRuSkYtYl9FSUhxMXBzbkNPdTRIVjZxRkdTd3Q3UU9XT0dZcUtERy1vMV9meHZzUmVjNkNsU1VNaHA3cG1xSDY0S3RITVN3VHBUYXFhaW9Jd0UyTmJ3RHkxZVVSS0J5d2pTRm1zX3FqRFhjUVVIV2psMm9xZ05PNG4teGxSeTUxWHR0YzBJV0hEeDZUcm5QVHpqSHVjSmJiZnFhMUNtVlRkWnhkQlF5ZldZNEF1TDBxRjNuS2p2Rkk3WGpmY193TDVhQVhoTjFuRG5) |
| Newsweek | Mystery ‘Mega-Planet’ 23 Times More Massive Than Earth Baffles Scientists | [Source Link](https://news.google.com/rss/articles/CBMiqAFBVV95cUxOajc5ZHdFaXR3MGduQzVreGZoQUVXajhkWXYycHMxY25BMUl4YWlNdG1vbkxLODNINE1Tc184TzVBT0hoUDAzeGdwLVFyQ1JxNWlhTUF6bl9sV003NDUzOUczNk5QdTBSbFAyakhYZW4tV2x4OHdLTnpyUmpvT1diQnhKQVlBYnQ5OHZ5S2FDMEpTTGJjcnFZdVNiM2xCWFRtMVZBSzZQNmU?oc=5) |
| Yahoo | NASA’s newest planet discovery is unlike anything seen before | [Source Link](https://news.google.com/rss/articles/CBMimgFBVV95cUxQM2luMndmMEtsMWpJaWZkT3pGSVJEX0FSSHpWTWYxcDh3XzF1VVdoQ1NOdzBwdW1BX1dXUGJubERjUkFQRXVRTG04UUxQdWdnNDFvdk1WM0FmbEVGeHl3UjFQNnVQYjdVSWIyR0lWLTZHd1RObmFJRGNldmxqTzRPclQ5ZmdBSjNEZ1FWcHJBWXZpaVV2MTJvdXdB?oc=5) |
| Yahoo | Mystery "mega-planet" 23 times more massive than Earth baffles scientists | [Source Link](https://news.google.com/rss/articles/CBMikAFBVV95cUxPLU1ETGUzZHZMaUFUUmt3Q2ZBSXJWTVlNM0JWWm1LeGRhSUlVNF90SW5pRkwxa0FzWFdqS3g0TnIyem4wM2FXQ1FFNkhXdk8wNUJNUXZkeVBRZndGVXA4R0lsT1FQX2lTaG9BQUhYR2lPT2p2dGxoY2E0c3pPcThSTElwRXZjWWM5Qmo3cEZjY3U?oc=5) |
| Space Daily | At 23.5 times Earth’s mass, GJ 523b is massive enough that standard planet-formation models struggle to explain why it didn’t accumulate a huge hydrogen-helium envelope — yet the planet is extraordinarily dense and apparently mostly rock, and astronomer | [Source Link](https://news.google.com/rss/articles/CBMifkFVX3lxTE9ZRnItZy1scFQwd0NZdjZ3YmNFdmdFekY3ZlFEbGpuWF9Va0FDUHR3cDFyc0FQTFRocG5QMkEzZ2Zwc0NER0pvZXBDM2J1d0F1cEc5UjNIZVVWWm9SNTlQazJ1aXFqUmY3d2RPNUQybE9WR05MSXFKdWRXQWphZw?oc=5) |
| Yahoo | Researchers identify ‘Mega-Earth,’ prompting questions of how it formed | [Source Link](https://news.google.com/rss/articles/CBMiogFBVV95cUxObm5IM3BhVy1COXRsQnlacnVxNjVROGRGYXktajhEUEY2VXl2NzhKa1BpclVDLWlCYktZZ211NC1aQjVSYzRXTXdwZEdKVWEzSjZxUDNSYllRMmxoOVZVcGlXVWxXbmNLT0ZtWmdIVnNvU25vNjV0el80Y3pZNnVvV0pxeW00ZHB1WHctelRSUFNtdVY5T0k4aUEwZVlxbjg4b3c?oc=5) |
| NewsNation | Researchers identify ‘Mega-Earth,’ prompting questions of how it formed | [Source Link](https://news.google.com/rss/articles/CBMid0FVX3lxTE1qQkp4YVJEMTdSb0FFRl9zYTd2My0yREQxR2Y4dlBtNWFqbGhiTld5Tk9oZk9uT0ktRWplUi1qbmhtZ2JpdExfSDVFYUJIYXdCaWg4Mm5Qc0prMTJxcTJjMnlUYkJuZEN2NmkwZndpWks1a3JEbXNV0gF8QVVfeXFMTkROeEE1ZDJyY2pOeVJpOXROeXlqbkRYT1hvMEpoN2w3SEhqUW9FNG85Q25pY05NajExMU4tVkFuVHVTdjBaVEVKZVJsaHA0NnhMMUtqOU1QdXQyS0JfZG44ZXBWNXFjVXMwYUdBcS1YZlZROThSeVNNdkNfYw?oc=5) |
| UA.NEWS | Astronomers have discovered a rocky "mega-Earth" 23 times more massive than Earth | [Source Link](https://news.google.com/rss/articles/CBMipwFBVV95cUxNZXRqSFcweGZvSHJ0c1hYLXE3OVoycjBQbmdFTVNLZDhKai1MQ1psYTRYOEE5cmFFMFkwOE9rdjF3NDJwZFlaVjFMdGYxUFQ4ajBqUUF1OVgyWWZ0VGUwaEZ1NkJZOExONmxzeHB5UnRhMlhhd1hOTkpxckQ2c3ZLY2ZhSF90LTRBeWh5LWtaMXdWQVh2U3NDWHMzakJZcmNVUGh0V0Z6dw?oc=5) |
| Inshorts | 'Mega-Earth' which is 23 times more massive than our planet discovered - GJ 523b is 60% the size of Neptune - Inshorts | [Source Link](https://news.google.com/rss/articles/CBMiswFBVV95cUxQcW5Lc1dxaUpvUGNLX3dRTjh5cHFEVjdUSkFacWxKMGlSZVBiclNzZkRqUks2SmRBNkxWaFlMOTNfdGxPYjc4QmdCaGFaaEZIYUNMTm9sU2czd1Z2ckpnbWdncXEzMG42Q0hHbDBIWmh5OWpsUGJEcVFKWTJGN1lLdHgzdVNMMUhpeUpMQXVLS29fZ21zbXdCSFBIZ3VVeUpEaHpvVkxsZ3FOOU5SLUtCZEJjONIBuAFBVV95cUxNVDgwaTBtR3AxVVRFR01QTHQzQ1JUcHFDN2RUQzFEbmtjM3lhZ045dFdTcWZNbldZSTV3WWlWWk4tNU5QYy1tNXV5V2FkTUR6ZmZtSEx5OGxnQlU5ZjNZNFBpOVZiRnhORjF2OVF6SUxKTlFveUFuQngzLXBJcFA0eEdKWXZ2cGRYQkswcFNhSERzY3lYN0FxeGljV2lVd2Z) |
| Phys.org | Mega-Earth GJ 523b is 23 times as massive as our planet—but only 2.5 times as wide | [Source Link](https://news.google.com/rss/articles/CBMibkFVX3lxTFAxUm9kVTF5RS1NVEhIYTREb3Y1YmxoWGlKYUh1WEJBM0lQRUdLVk4zbU45LWctem92U0xZSDFaRTFQZDAtd2NGWVJpQ1JLSnB4RFBTTmM2bDQybkI5cEQwRkRteGdYZVdCbFpPY3BR?oc=5) |
| Space | Astronomers discover a giant, rocky 'mega-Earth' 23 times more massive than our planet | [Source Link](https://news.google.com/rss/articles/CBMixAFBVV95cUxNaEcxOXI5SDZFcDQ2b2VLSFVUU3k3a3llWEpjNzJlODFXSFJKdFdLb1ZNYTlocnA5RnpzUENwMndYcHlJazJhWGdydmg0M0U3cXF6enU4dVpMTWFYSzBJcXhOZWFDZk1yejU3YVFMM3NOTldxNlJROVFWNURLUks1U3FGQ09RWE91THRMOXBXS09PNFVydTVzaEd3cUpaUDZndi1hSVRpSW11YUoxWHdwRHJPaV9xSmJSTzY5VElYYzdSc1Zq?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-08-19/astronomers-discover-a-giant-rocky-mega-earth-23-times-more-massive-than-our*