Just found out that Membership to Questacon Canberra or SciTech Perth gives you free entry to other Science museums worldwide as per the ASTC Travel Passport program.
https://www.astc.org/wp-content/uploads/2022/11/Standard-Pas…
Basically, if you are traveling to the US or other countries you can get access to hundreds of science museums in the USA and Canada, with an additional 17 museums in 11 other countries around the world for free simply by taking membership to Questacon or the Perth Science museum.
You don't need to be an ACT or WA resident to become a member of these two however if you are within 200 km of the Melbourne museum or Sydney museum they can refuse you entry as you did not take a membership to your local museum. If your goal is to get access to the US museums then this is perfect.
The best part is even if you are a family and visit just 2 museums in different cities or visit NASA, this deal will make it way cheaper to get the basic entry into the museums, you have to then pay extra for the special shows / Planetarium etc.
Full list of the participating museums is included in the PDF.
Membership prices vary based on if you are single or family.
This is the link to buy and see the prices of the the Scitech membership
https://www.scitech.org.au/members/
Scitech is probably the better membership in this case because they have a completely online process whereas Questacon require you to email them get a form and apply for membership.
When you pay Scitech will immediately send you a QR code and membership cards in the mail. Even if you are From Non WA state it makes sense to get scitech if your goal is to get into the US museums
Can I suggest updating title to Scitech Perth, as current title suggests membership to Perth Museum will get you in.
Perth Museum is different to Perth Scitech, which is more of a kids science and technology play centre.