How much does it cost for an adult

I would go to their website and check the things you want to do and see. You will get the cost and can schdule your activities.

It depends on what you want to do. For an adult it's $20 general admission, $30 if you add the Journey to Space exhibit and $38 to add the National Geographic Experience film to the space bundle.

$37 for space exhibition, rest of museum and 3D space film

It varies, depending if you want to add on the special exhibits and/or films. I believe it ranges from about $15 to $25

Believe its $20.00