For decades, the Soviet government claimed she survived for several days. However, in 2002, it was revealed that she died just hours after launch due to overheating and stress caused by a failure in the R-7 sustainer to separate from the payload.
To prove that a living passenger could survive being launched into orbit and endure a microgravity environment. Laika_post_Sputnik.7z
You are looking for a well-written summary or "proper text" describing what happened to Laika after the Sputnik 2 launch. For decades, the Soviet government claimed she survived
Could you clarify if you are trying to you already possess, or if you would like a detailed historical account of Laika's journey? Most Likely Intent: Historical Information Laika_post_Sputnik.7z