The World Space Timeline

About this timeline & how to read it

This timeline highlights major milestones across robotic, crewed, and commercial spaceflight. It includes scientific observatories, human exploration, and the rise of private launch providers. Use the "Famous astronauts" page for individual bios and follow links for deeper reading.

Key thematic areas:

• Early exploration: first launches and orbital missions that proved access to space.
• Human spaceflight: missions that extended human presence beyond low Earth orbit.
• Science & observatories: telescopes and planetary probes that advanced knowledge.
• Commercial & future programs: reusable rockets, lunar-return programs (Artemis), and Mars exploration plans.

Sources: public NASA archives, mission pages, and encyclopedic references. Contact for a full bibliography.