Deep beneath the Earth's surface, a mysterious phenomenon pulses every 26 seconds a seismic "heartbeat" that has puzzled scientists for decades. First detected in the 1960s, this low-frequency microseism is not tied to earthquakes or tectonic activity, yet it repeats with remarkable regularity. The source of this rhythmic signal appears to come from the Gulf of Guinea, off the west coast of Africa. One leading theory suggests that powerful ocean waves crashing against the continental shelf in this region generate the energy responsible for the pulse. Another possibility points to subtle volcanic or pressure-related processes beneath the seafloor. Some even questioned whether human activities like oil drilling might play a role, but the pulse predates such operations. Despite years of study, the exact cause remains unknown, making Earth’s 26 second heartbeat one of our planet’s most intriguing and enduring natural mysteries. #space #science #fact #facts