<description>&lt;p&gt;&lt;strong&gt;Sputnik 1&lt;/strong&gt; (&lt;span class= "IPA nopopups noexcerpt" lang="en-fonipa" xml:lang= "en-fonipa"&gt;&lt;a title="Help:IPA/English" href= "https://en.wikipedia.org/wiki/Help:IPA/English"&gt;/&lt;span title= "/ˈ/: primary stress follows"&gt;ˈ&lt;/span&gt;&lt;span title= "'s' in 'sigh'"&gt;s&lt;/span&gt;&lt;span title= "'p' in 'pie'"&gt;p&lt;/span&gt;&lt;span title= "/ʌ/: 'u' in 'cut'"&gt;ʌ&lt;/span&gt;&lt;span title= "'t' in 'tie'"&gt;t&lt;/span&gt;&lt;span title= "'n' in 'nigh'"&gt;n&lt;/span&gt;&lt;span title= "/ɪ/: 'i' in 'kit'"&gt;ɪ&lt;/span&gt;&lt;span title= "'k' in 'kind'"&gt;k&lt;/span&gt;,&lt;span class= "wrap"&gt; &lt;/span&gt;&lt;span title= "/ˈ/: primary stress follows"&gt;ˈ&lt;/span&gt;&lt;span title= "'s' in 'sigh'"&gt;s&lt;/span&gt;&lt;span title= "'p' in 'pie'"&gt;p&lt;/span&gt;&lt;span title= "/ʊ/: 'u' in 'push'"&gt;ʊ&lt;/span&gt;&lt;span title= "'t' in 'tie'"&gt;t&lt;/span&gt;&lt;span title= "'n' in 'nigh'"&gt;n&lt;/span&gt;&lt;span title= "/ɪ/: 'i' in 'kit'"&gt;ɪ&lt;/span&gt;&lt;span title= "'k' in 'kind'"&gt;k&lt;/span&gt;/&lt;/a&gt;&lt;/span&gt;, &lt;a title= "Russian language" href= "https://en.wikipedia.org/wiki/Russian_language"&gt;Russian&lt;/a&gt;: &lt;span lang="ru" xml:lang="ru"&gt;Спутник-1&lt;/span&gt;, &lt;em&gt;Satellite 1&lt;/em&gt;), often referred to as simply &lt;strong&gt;Sputnik&lt;/strong&gt;, was the first artificial Earth &lt;a title="Satellite" href= "https://en.wikipedia.org/wiki/Satellite"&gt;satellite&lt;/a&gt;. It was launched into an elliptical &lt;a title="Low Earth orbit" href= "https://en.wikipedia.org/wiki/Low_Earth_orbit"&gt;low Earth orbit&lt;/a&gt; by the &lt;a title="Soviet Union" href= "https://en.wikipedia.org/wiki/Soviet_Union"&gt;Soviet Union&lt;/a&gt; on 4 October 1957 as part of the &lt;a title= "Soviet space program" href= "https://en.wikipedia.org/wiki/Soviet_space_program"&gt;Soviet space program&lt;/a&gt;. It sent a radio signal back to Earth for three weeks before its three &lt;a class="mw-redirect" title= "Silver-zinc battery" href= "https://en.wikipedia.org/wiki/Silver-zinc_battery"&gt;silver-zinc batteries&lt;/a&gt; became depleted. Aerodynamic drag caused it to fall back into the atmosphere on 4 January 1958.&lt;/p&gt;</description>

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Sputnik

MAR 4, 202633 MIN
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Sputnik

MAR 4, 202633 MIN

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Sputnik 1 (/ˈspʌtnɪk, ˈspʊtnɪk/, Russian: Спутник-1, Satellite 1), often referred to as simply Sputnik, was the first artificial Earth satellite. It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program. It sent a radio signal back to Earth for three weeks before its three silver-zinc batteries became depleted. Aerodynamic drag caused it to fall back into the atmosphere on 4 January 1958.