A supposedly sci-fi movie I saw as a kid around year 2005.

Only two thing I remember: a scene by the door of a planet base with a footprint in the sand, implying someone just left. And another scene, which was repeated multiple times, of a kid running through a snowy forest, every time getting closer and closer to a log lying there, to finally find a star shaped crystal under it. Then cleaning snow dust off it with mittens.

It looked oldish, easily could be a tv series