Other Designations: PS-2. Class: Biology. Nation: USSR. Manufacturer: OKB-1.

After the surprise public impact of Sputnik 1, the satellite and launch teams were called back from vacation and in one month assembled Sputnik 2 (using equipment already developed for dog sounding rocket flights). The spacecraft, which remained attached to the upper stage, carried the dog Laika. No recovery was possible, and the dog perished in orbit due to higher-than-expected tempreatures. Total Mass: 508 kg.

03 November 1957 Launch Site: Baikonur . Launch Vehicle: R-7 8K71.

• Sputnik 2 Mass: 508 kg. Perigee: 212 km. Apogee: 1,660 km. Inclination: 65.3 deg.
  
  Carried dog Laika. Study of the physical processes and conditions of life in outer space. After the surprise public impact of Sputnik 1, the satellite and launch teams were called back from vacation and in one month assembled the satellite (using equipment already developed for dog sounding rocket flights).