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Health & Science3h 20m ago
Human radio signals have been expanding into space for over a century, creating a bubble around Earth.
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Milky Way galaxy
Who
Humanity
What
Human radio signals have been expanding into space for over a century, creating a bubble around Earth.
When
Wed, 15 Jul 2026 12:30:59 GMT · 3h 20m ago
Where
Milky Way galaxy ·
Why
Early experimental transmissions, commercial broadcasting, military radar, and television have changed the radio sky.
The Frontline Impact
How this affects you
Most of the Milky Way galaxy is unaware of Earth's existence due to the limited range of these signals.
Story chain
7 events in this thread- Currently Reading3h 20m agoHuman radio signals have been expanding into space for over a century, creating a bubble around Earth.
- Health & Science3h 20m agoHuman radio signals have been expanding into space for over a century, changing the radio sky.Open article
- Health & Science3h 20m agoHuman radio signals have been expanding into space for over a century, creating a bubble of the Milky Way that is only a tiny fraction of the galaxy.Open article
- Health & Science3h 20m agoHuman radio signals have expanded into space for more than a century, changing the radio sky.Open article
- Health & Science3h 20m agoHuman radio signals have been expanding into space for over a century, reaching only a tiny bubble of the Milky Way.Open article
- Health & Science3h 20m agoHuman radio signals have been expanding into space for over a century, originating from early experimental transmissions, commercial broadcasting, military radar, and television.Open article
- Health & Science3h 20m agoHuman radio signals have expanded into space for more than a century, crossing only a tiny bubble of the Milky Way.Open article