CHAPTER 06 · Read Cosmos
Voyager and planetary instruments
Can we select the exploration equipment before determining what we want to investigate?
Explore this chapter ↗Let's begin! The experience allows you to directly interact with the scenes and observation tools.
Choose the eyes of an explorer
Chapter 6 of the original book connects the culture of early exploration with planetary exploration, demonstrating how the tools used for observation have evolved alongside the encounter with new worlds. Huygens and Voyager represent different eras in this expansion of boundaries.
Simply knowing that a probe is approaching does not answer all questions. The information that can be obtained depends on what signals are collected and transmitted back to Earth.
OBSERVE · Start with evidence
Three pieces of evidence
- Cameras record the surface features and the structure of clouds and rings.
- Spectrometers study matter and the environment through the properties of light at different wavelengths.
- Particle and magnetic field measurements investigate the unseen environment around us.
How are the "eyes" of exploration created?
Commentary following exploration and planetary observation in chapter 6 of the original book. The instrument activity is a fictional mission, not Voyager’s actual instrument configuration.
Questions to Define Before Starting
Exploration cannot be completed solely through the ability to travel far. You must first determine what kind of world you want to understand in order to choose the appropriate tools for measurement.
When reading about ancient exploration and planetary exploration, pay attention to the changes in methods of transportation and observation alongside the changes in travel. What an explorer can report back depends on what they have recorded.
Questions to ConsiderWhat should be defined first when designing a mission?
What the video doesn't say
The visual information presented by the camera, the wavelength-specific light recorded by a spectrometer, and measurements of surrounding particles and magnetic fields all address different questions. A single, beautiful video cannot replace all of this data.
Even with numerous tools, interpretation remains essential. Break down the information by considering: What conditions produced the signal? What does the measurement itself mean? What conclusions can be drawn from the model?
Questions to ConsiderWhat specific details would you include in a description of the observed video?
Returning Signals, Leaving Gaps
The information obtained by the probe comes back as a signal. The observer uses this signal to recreate the conditions of a world that they cannot directly access.
This process also leaves unexplored areas. By honestly documenting these gaps, the exploration becomes not just a conclusion, but a concrete starting point for the next exploration.
Questions to ConsiderWhat will you pass on to the next mission?
Discoveries and their limits
The following equipment arrangement represents a hypothetical mission designed to consider the relationship between questions and measurements. It does not replicate the actual Voyager equipment or observational data. Gaps remain for measurements that were not performed.
Please write down one question that the chosen tool has opened, and one remaining gap.
Explore this chapter ↗Evidence and further reading
More important than all of these instruments was the idea that even distant stars could be understood through the laws of nature.