AstronautAtlas
Learn the story of spaceflightLoading AstronautAtlas records
AstronautAtlas
Learn the story of spaceflightLoading AstronautAtlas records
Space programs and missions · A guided course
Two ways to measure a changing planet
Connect Shizuku’s passive microwave observations with Shikisai’s optical and thermal measurements, read sea-ice products and follow the work needed to maintain a comparable climate record.
Suggested preparation is listed in the course · Start whenever you’re ready
NASA Earth Observatory map of Arctic sea-ice concentration in January 2016, produced by Jesse Allen from JAXA GCOM-W/AMSR2 observations. The yellow line shows the 1981–2010 January median extent from a separate historical satellite record. This is a processed scientific map, not a natural-color photograph or a current sea-ice report. Full map and legend retained; display copies resized and compressed only.
NASA Earth Observatory / Jesse Allen; JAXA GCOM-W / AMSR2 data; historical extent from NSIDC · Image source · NASA media usage guidelinesYour place in the bigger picture
Build on familiar ideas, then choose a direction to explore next. Every course remains open.
Turn satellite signals into testable evidence
Read the planet through land, water and atmospheric measurements
Japan’s GCOM water and climate program
Two ways to measure a changing planet
Start whenever you’re ready. Preparation is suggested, and every course stays open.
No follow-on course currently lists this one as preparation. Explore another subject or revisit an idea that caught your interest.
Browse all courses →One suggested order from the foundations to Japan’s GCOM water and climate program. Shared starting points appear once; skip anything you already know.
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