uber cost IAH to Johnson space center

Will be flying into IAH at 6:30am on a Wednesday and need to be at the Johnson NASA center before 9:00am and the flight back will be at leaving at 6:05pm same day.

My return flight will be in first class with AA and will have no baggage to check in.

What time do you think I should leave NASA center?

What would the cost for uber be each way?