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EVA
The Petrovascope is a fictional scientific instrument featured in Project Hail Mary. Designed specifically to detect Astrophage activity, the Petrovascope functions by identifying infrared emissions (referred to in the novel as the “Petrova line”) produced when Astrophage microorganisms move between stars and planetary atmospheres.
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Petrovascope Term Timeline in Project Hail Mary
The timeline below shows where the term Petrovascope appears in Project Hail Mary. The colored dots and icons indicate which themes are associated with that appearance.
Chapter 6
...manual. Frustrated, he methodically tests buttons and finds the scientific instrumentation panel, which includes a Petrovascope, a specialized sensor designed to detect Astrophage activity. However, the screen only displays an error...
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...than the surface of the sun. The sheer intensity of this output explains why the Petrovascope cannot function while the engine is on—the IR radiation would completely blind the instrument. Ryland...
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...Now that the ship is no longer emitting overwhelming IR radiation, he can activate the Petrovascope and begin scanning Tau Ceti’s system for a Petrova line.
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Chapter 18
...theorize that Adrian’s predators might inhabit a specific atmospheric region—the Astrophage breeding zone. Using the Petrovascope in the control room, they identify concentrated clusters of Astrophage breeding activity precisely 91.2 kilometers...
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