Hronika osvoeniya kosmosa: 1923 god.
7.01.2001 0:59 | A. B. Zheleznyakov/Enciklopediya Kosmonavtika
| 01.11.1923 | V SShA Robert GODDARD provel pervye stendovye ispytaniya zhidkostnogo raketnogo dvigatelya. |
| 15.12.1923 | V Germanii opublikovana rabota Herman OBERTH "Raketa v kosmicheskoe prostranstvo" (Die Rakete zu den Planetenraumen). |
| 1923 | Revvoensovet SSSR vydal Laboratorii po razrabotke izobretenii Nikolaya Ivanovicha TIHOMIROVA zadanie na proverku opytnym putem primenimosti reaktivnogo deistviya k sushestvuyushim minam, s cel'yu uvelicheniya ih dal'noboinosti. |
Astrometriya
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Astronomicheskie instrumenty
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Astronomicheskoe obrazovanie
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Astrofizika
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Istoriya astronomii
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Kosmonavtika, issledovanie kosmosa
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Lyubitel'skaya astronomiya
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Planety i Solnechnaya sistema
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Solnce