Nick couldn't see the Earth at all.
A moment later, he changed his biology a bit and grew a makeshift telescope.
His vision narrowed down significantly, but it was easier to look into the distance.
That was when he saw the tiny portal.
There was just a tiny portal floating in the middle of space.
'I see,' Nick thought, getting rid of his augmentation.
'This is another one of the Sun's functions.'
'This tribe is at war with other tribes, and they most likely want to keep the presence of their Zephyx generators secret.'
'The Sun is absorbing all of the light from the actual sun, turning it into a black and empty space.'
'Then, there are different spots on the Sun that reflect some of the sunlight, making it look like stars.'
'Without knowing what to look for, you wouldn't find it.'
'They hid an entire planet. That's not easy to do.'
Of course, Nick wasn't just standing there, doing nothing.