Making a small project for my class and I used some assets from here so I decided to give back what I made for it. It contains an asteroid, spaceship, and star animation.They are included as individual files as well on a sprite sheet (on the sheet they have been resized and may not be as high quality).

Note: The star animation in the individual comes in two forms. One as a single strip and a second with three strips in one for use with Unity's particle animation so the particles can start on a random frame.

Here is the web demo. Enjoy!