Soluna was sitting on her cloud doing her job. She gave human the sun and the moon, but what she didn't know was someone was jealous of her.
Zeus wanted all control so he flew up to her so he could get all the power. She was very worried she was just doing her job not harming anyone.
She was very mad that he was yelling at her. He demanded that they fight for the power so she did.
She woke up in worry and she saw what happened. When Zeus hit her with his lighting bolt she malfunction causing the solar eclipse.
Now when any mortal looks at the solar eclipse they go blind in punishment of Soluna's fight with Zeus.
Now she stays on one of the clouds by Mount Olympus doing her job for the people. Zeus also told all the gods and goddess to never talk to Soluna again but some like Aphrodite and Apollo still visited her so she wouldn't be lonely.