In 1998, after the collapse of the Soviet regime, Oleg Gazenko, one of the scientists responsible for sending Laika into space, expressed regret for allowing her to die: Work with animals is a source of suffering to all of us.
En 1998 tralo colapso do réxime soviético, Oleg Gazenko, un dos científicos responsables da misión do Sputnik 2, expresou publicamente o seu arrepentimento por permitir a morte de Laika: As probas con animais son unha fonte de sufrimento para todos nós.