AstronautAtlas
Learn the story of spaceflightLoading AstronautAtlas records
AstronautAtlas
Learn the story of spaceflightLoading AstronautAtlas records
Space programs and missions · A guided course
Test the origins of Phobos and follow a sample’s journey home
Investigate competing moon-origin hypotheses, proximity flight, international instruments and sample preservation. Calculate signal delays and sample allocations while distinguishing the achieved launch from planned Mars-system exploration.
Suggested preparation is listed in the course · Start whenever you’re ready

Figure 1 from Ulamec et al. (2025), showing the Idefix rover flight model during integration at MELCO in Kamakura, Japan. This is ground integration hardware, not a photograph on Phobos. Full published frame retained. Ulamec et al. (2025), CC BY 4.0. Delivery copies resize or change format only.
Ulamec et al. (2025), Progress in Earth and Planetary Science · Image source · CC BY 4.0Your place in the bigger picture
Build on familiar ideas, then choose a direction to explore next. Every course remains open.
From a falling feather to worlds circling a star.
Follow the exchanges that shape worlds around worlds
Japan’s MMX Martian moons mission
Test the origins of Phobos and follow a sample’s journey home
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 MMX Martian moons mission. Shared starting points appear once; skip anything you already know.
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