| The New York Times, p | from the original on 5 February 2008 |
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| We are really grateful that you have done a wonderful job | President Eisenhower was not surprised by Sputnik 1 |
A small highly polished sphere, the satellite was barely visible at sixth magnitude, and thus harder to follow optically.
27| Project Mercury: Main-in-Space Program of NASA, Report of the Committee on Aeronautical Sciences, United States Senate, 1 December 1959• Another is in the in Seattle, Washington | The Communist Party newspaper only printed a few paragraphs about Sputnik 1 on 4 October |
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| 3 in and the at liftoff was 3 | It was a polished metal sphere 58 cm 23 in in diameter with four external radio antennas to broadcast radio pulses |
The data was useful even after the satellite's separation from the second stage of the rocket; Sputnik's location was calculated from the data on the second stage's location which followed Sputnik at a known distance.
1| Temperature and pressure were encoded in the duration of radio beeps | These signals were detected at the IP-1 station by Junior Engineer-Lieutenant V |
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| The R-7 core stage, with a mass of 7 | David, Leonard 4 October 2002 |
We are very excited about the possibility of producing Sputnik V in Argentina, a vaccine with which we are already protecting a large part of our population with excellent results.