1969
Apollo
Moon Landing
Apollo 11 landed humans on the Moon and returned lunar science, imagery, samples, and operations history that still shape exploration.
Discovery Timeline
Interactive discovery timeline
Milestones that changed how humanity sees space.
Scroll through the exploration arc from Apollo to Artemis, with NASA source links and COSMOS explainers for each milestone.
1977
Outer planets
Voyager Launches
Voyager 1 and 2 opened the outer Solar System with flybys, planetary imaging, and the continuing interstellar mission.
1990
Observatory
Hubble Space Telescope
Hubble transformed modern astronomy with deep-field imaging, galaxy studies, nebula observations, and an enduring public archive.
2004+
Surface exploration
Mars Rovers
NASA rover missions turned Mars into a rolling field laboratory for geology, climate clues, habitability, and sample context.
2021
Infrared universe
James Webb Space Telescope
JWST extends deep-space observation into infrared wavelengths, revealing early galaxies, star formation, exoplanets, and cosmic dust.
Now
Moon to Mars
Artemis
Artemis connects lunar systems, science, crew operations, Gateway planning, and the long arc toward sustained exploration.