Felix saw a black hole appearing right where they were. He felt the incredible drawing force from the black hole, and if it wasn't for Holly's kick, he would've been sucked in immediately.
Even Holly sat cross-legged in the air with her eyes closed. She looked as if she was trying her best to resist the pull from the black hole.
Similarly, the Destroyer-class spaceship that had been chasing them also stopped, retreating madly. However, it was moving quite slowly, showing how terrible the pull