The 42nd Period | STEM Education Hub

🎯 Your Planet Dossier

Loading your observatory data…

🛰️ Alternate Path — Defend Your Mission Proposal

With your teacher's approval, you may instead defend your team's Project 6.2.3 mission proposal as your capstone. If you do, add a new section on biosignatures: which gases or other signs your mission would look for, what non-living explanations could fool it, and exactly what result would convince you — not just intrigue you — that you'd found life. The same rubric applies, with "gas-by-gas analysis" judged on that new section.

🔒 Constraints

Use your dossier, the gas field guide, and what you've learned this semester. Outside research on real planets is welcome as comparison.
Every detected gas needs both a living and a non-living explanation before you decide which is more likely.
Take detection confidence seriously — a tentative signal can't carry your whole case.
Written case: two to three pages. Defense: 5–7 minutes, plus questions.
No AI-generated writing. This is your call, and you'll defend it live.
Written case due Day 3; defenses on Day 4.

📋 Deliverable — Your Report Must Include

Your call — fund follow-up observations or not, with an honest confidence level (for example: low, moderate, or high).
Planet context — what its size, density, star, and habitable-zone position do for (or against) the case.
Gas-by-gas analysis — each detected gas, its confidence, and its living and non-living explanations.
The combination — which gases together matter most, and why.
False positives considered — at least one non-living scenario, and why you ruled it in or out.
What would convince you — the specific next observations, and how each possible result would change your call.
Course connections — at least three ideas from different parts of the semester, used in your argument.

📊 Grading Rubric — 100 pts

A starting point — adjust weights to fit your class before assigning.

Category	Weight	Exemplary	Proficient	Developing	Incomplete
The Call & Its Reasoning	20 pts	A clear call (fund follow-up or not) with an honest confidence level, and reasoning that follows from the evidence.	Clear call; reasoning mostly follows but skips a step.	Call is vague or not connected to the evidence.	No call made.
Gas-by-Gas Analysis	25 pts	Every detected gas gets both a living and a non-living explanation; the student explains which combination matters and why, and accounts for detection confidence.	Most gases analyzed well; one explanation or confidence level overlooked.	Treats a single gas as proof, or ignores non-living explanations.	No gas analysis.
Planet Context	15 pts	Uses size, density, star type, and habitable-zone position to strengthen or weaken the case, with numbers.	Uses most context; one factor missing.	Context listed but not connected to the argument.	Missing.
What Would Convince You	15 pts	Names specific follow-up observations and explains what each result would change — the difference between intriguing and convincing.	Names follow-ups, but doesn't say what the results would mean.	"More research is needed," with no specifics.	Missing.
Synthesis Across the Course	10 pts	Draws accurately on at least three different parts of the course (e.g. spectra, stars, transits, habitable zones, extremophiles, missions).	Draws on two parts of the course.	Only uses this unit's final lessons.	Missing.
The Defense	15 pts	Confident, well-organized presentation; handles tough questions with evidence and admits uncertainty honestly.	Clear presentation; some questions answered weakly.	Reads from notes; struggles with questions.	Not presented.

← Back to Problem 6.3.1 🗺️ Back to Unit 4 Overview

🔭 Problem 6.3.1 · Unit 6 of 6 · Single Semester