The whispers of the earth

"The Whispers of the Earth."

Here's a summary of the story's key aspects:

* Discovery in 2075: Dr. Lena Voss and her team at the Terran Signal Array discover that Earth acts as a vast archive, continuously storing electromagnetic signals from the past.

* Reconstructing the Past: Initially, they reconstruct signals from recent times (days and months ago), gradually extending their reach to decades-old broadcasts, successfully recovering content from the 2030s, 1990s, and 1960s.

* An Ancient Pulse: The surprising clarity of these older signals prompts Lena to investigate even earlier ones, leading her to signals from the 1920s. Here, she uncovers a non-human, low-frequency pulse—a message encoded in a language predating human radio, dating back to 1910.

* "We are here. We watch.": The message, "We are here. We watch," repeats, revealing a network of similar signals stretching back centuries. This suggests an unknown, non-human presence has been observing and recording Earth's signals for a very long time.