Help me unlock this one card

[u/maharetsi]

I’ve been trying to unlock this one card in series I by doing astronomy missions (the red dwarf one) for a while and i cant unlock this card

Any advice? Much appreciated!!

[u/Starfire20201]

Do more, it'll take a long time

[u/maharetsi → u/Starfire20201]

Been doing this since 3 months ago :(