If you are low income is there a discount rate

With a Massachusetts EBT/WIC card the admission into the Exhibit Halls will be free for a total of 4 people. Please present the card with a Massachusetts ID at the main entrance. This may be used once per day any time the Museum is open.

Check your local library. Passes are usually $10.

I found free passes at the library at Northeastern University

Many towns and cities have discounts or passes for MOS. In Taunton, passes are/were available at public library

If you are visiting the area there are plenty of good package deals to be had on the internet.