Corelib and the Black Hole

Planet life on a mighty fine day;
Corelib IV life is simple and gay.
Party by day; Party by night;
When they were alive after monsterous fright.
It seemed one day.
There was a scare
When an unknown
phenomenon happened their way.
Seems something was coming
At a terrible pace
Or the planet moved towards it.
Whatever the case
It was monsterous,
And bright as it seemed
to consume all the light it could
like an intergalactic whirlpool.
The world seemed to stretch
Toward the object that came
But it's course came no further
And soon veered away.
Rather was saved by own orbit;
Corelib pulled it's planet on.
The black hole destroyed not today.
So Corelib IV had cause to be lively.
It's sun had saved it by mere gravity.
So the people would party and be overjoyed,
Until they forget they were nearly destroyed.