Final answer:
The term for Jesus's going to heaven is the 'Ascension,' which is celebrated by Christians as Ascension Day and is depicted in religious art with Christ ascending to heaven accompanied by angels.
Step-by-step explanation:
The word that means Jesus's going to heaven is Ascension. The Ascension of Christ is a significant event in Christian belief, describing Jesus's rise to heaven after his resurrection. This event is detailed in the books of Luke and Acts in the New Testament and is commemorated by Christians on Ascension Day, typically observed on the Thursday forty days after Easter.
The iconography of the Ascension often depicts Christ being lifted to the heavens by angels, emphasizing the belief in his divine elevation and return to the divine presence.