I agree with tz and kenquin, the planet project needs more testing.
CP:
CP cost is too high, this would make the gap between the top players and the players that can't take on a higher level bio experiment even larger. Maybe a secondary option that will utilze turns instead of CP will work for the lower end players.
Turns:
Turn cost for research is a bit too high.
Credits:
The credit cost is just alright for the top end players but again this amount is a bit too high and it might cause new players to loose interest playing SO
Minerals:
Stone cost is a bit high IMO..
I'll post more comments later