AstronautAtlas
Learn the story of spaceflightLoading AstronautAtlas records
AstronautAtlas
Learn the story of spaceflightLoading AstronautAtlas records
Space programs and missions · A guided course
Read the chemistry and motion of the energetic universe
Follow X-ray photons through cold detectors, interpret a real supernova spectrum, plan complementary observations and build a reproducible archive result.
Suggested preparation is listed in the course · Start whenever you’re ready

Mission-produced spectrum of supernova remnant N132D from Resolve, with an Xtend X-ray image inset, released January 5, 2024. Element labels identify spectral features; the inset uses displayed X-ray colors. This is a scientific visualization of observations, not a visible-light photograph. Full published frame retained.
JAXA/NASA/XRISM Resolve and Xtend · Image sourceYour place in the bigger picture
Build on familiar ideas, then choose a direction to explore next. Every course remains open.
Turn patterns of light into evidence about places we cannot touch.
From a detected signal to a defensible measurement
Japan’s XRISM X-ray observatory
Read the chemistry and motion of the energetic universe
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 XRISM X-ray observatory. Shared starting points appear once; skip anything you already know.
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