Mariner 9 Launched: First Spacecraft to Orbit Another Planet
Mariner 9 blasted off to become the first spacecraft to orbit another planet, immediately tackling a global dust storm that had previously obscured the Martian surface. This mission successfully mapped 70% of the red planet's terrain and tracked atmospheric shifts, fundamentally transforming our understanding of Mars from a static world into a dynamic one with weather patterns and geological history.
May 30, 1971
55 years ago
Key Figures & Places
What Else Happened on May 30
Every tree within fifteen kilometres of Jerusalem. Gone. The Romans needed timber for their siege engines, and Titus didn't hesitate—ancient olive groves, orcha…
المسلمون بقيادة خالد بن الوليد يهزمون الروم ويفتحون مدينة بصرى بالشام.
K’inich K’an Joy Chitam II. besteigt nach dem Tod seines Bruders K’inich Kan Bahlam II. den Thron der Maya-Stadt Palenque.
las tropas cristianas de Alfonso VI son derrotadas en la batalla de Uclés (Cuenca) por los almorávides de Granada, Valencia y Murcia, dirigidos por Yusuf ibn Ta…
Bereits ein knappes Jahr nach seinem Tod wird Antonius von Padua von Papst Gregor IX. heiliggesprochen.
A tax collector named John Bampton demanded money from villagers in Brentwood, Essex—three times what they'd already paid. The men of Fobbing told him no. Just …
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