Translation of "sky" into Swahili

Explain that every evening the sun goes down and the sky gets dark.

Elezea kwamba kila jioni jua huzama na anga huwa giza.

Suddenly, a light appeared in the sky, like a spark, then two, then three.

Ghafla, mwanga ukaonekana kwenye mbingu, kama cheche, kisha mbili, kisha tatu.

Perhaps you wake up and note an overcast sky, which may not be inviting.

Huenda umeamka asubuhi na kuona kwamba mawingu ya mvua yametanda, hali ya hewa si shwari.