आज का इतिहास: अमेरिका का अंतरिक्ष यान चैलेंजर दुर्घटनाग्रस्त हुआ

<p style="text-align: justify;">28 जनवरी का दिन दो बड़ी घटनाओं के गवाह के तौर पर इतिहास में दर्ज है. 28 जनवरी 1986 को अमेरिका का अंतरिक्ष यान चैलेंजर दुर्घटनाग्रस्त हुआ था. फ्लोरिडा से उड़ान भरने के 73 सेकंड के भीतर इसमें विस्फोट हो गया और इसमें सवार सभी सात अंतरिक्ष

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