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NASA's Silent Satellite Resurfaces with Mysterious Radio Pulse

6/26/2025

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Summary

Astronomers Detect Satellite Pulse

In a stunning discovery, astronomers have detected a fleeting 30-nanosecond radio pulse from NASA's long-silent Relay 2 satellite, which had been dormant since 1967. Traced by the Australian Square Kilometer Array Pathfinder, this mysterious signal may have been triggered by a micrometeorite impact or an electrostatic discharge, sparking innovative approaches to track inactive satellites.

Summary

Fialkov Explores Cosmic Dawn

Astronomers are delving into the universe's infancy by harnessing the 21-centimeter radio signal to study Population III stars, born just 100 million years post-Big Bang. Spearheaded by Anastasia Fialkov, the REACH project seeks to uncover how these ancient stars shaped cosmic fog, shedding light on the enigmatic Cosmic Dawn and the origins of the universe's first illumination.

History

Historical Context

NASA launched the Relay 2 satellite in 1967, enhancing communication technology for space missions. This advancement paved the way for ongoing research, such as the recent detection of a 30-nanosecond radio pulse from the satellite and the REACH project, which studies signals from Population III stars, crucial for understanding the universe's early formation and cosmic evolution.

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Astronomers Detect Satellite Pulse

In a stunning discovery, astronomers have detected a fleeting 30-nanosecond radio pulse from NASA's long-silent Relay 2 satellite, which had been dormant since 1967. Traced by the Australian Square Kilometer Array Pathfinder, this mysterious signal may have been triggered by a micrometeorite impact or an electrostatic discharge, sparking innovative approaches to track inactive satellites.

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