Analysis of information sources in references of the Wikipedia article "Thiết bị vũ trụ không người lái" in Vietnamese language version.
The animal, launched on a one-way trip on board Sputnik 2 in November 1957, was said to have died painlessly in orbit about a week after blast-off. Now, it has been revealed she died from overheating and panic just a few hours after the mission started.Quản lý CS1: bot: trạng thái URL ban đầu không rõ (liên kết)
