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SpaceX must return to Earth – level 1
19-01-2026 07:00
A SpaceX capsule leaves the space station early. One...SpaceX must return to Earth – level 2
19-01-2026 07:00
A SpaceX spacecraft left the space station early because...SpaceX must return to Earth – level 3
19-01-2026 07:00
A SpaceX capsule left the International Space Station earlier...A Czech man changes the world of 3D printing – level 1
11-11-2025 07:00
Josef Průša is a Czech inventor. He changes the...A Czech man changes the world of 3D printing – level 2
11-11-2025 07:00
Josef Průša is a Czech entrepreneur and engineer who...A Czech man changes the world of 3D printing – level 3
11-11-2025 07:00
Czech visionary Josef Průša has redefined additive manufacturing through...How old is the Moon? – level 3
20-08-2025 15:00
In 1972, during the Apollo 17 mission, astronauts collected...