[TOMT][TV SHOW] A modern sci-fi tv show about space, dark matter, main actors were kids

I can't find the name, been searching for it for about two hours.

I'm pretty sure its modern like 2019 or even 2020.

Just watched the couple first episodes. Main thing that got stuck in my mind is this big Polar Bear talking and attacking the bad guys.

I'm preeety sure the main actors were kids and the name has to be something related to space or dark matter or something. Help.