The Copernicus Science Center is located on the M2 subway line approximately Swietokrzyski Bridge. There is a 2 minute walk from the subway station to the Copernicus Science Center.
You can find more information on transport routes and associated costs in Warsaw at the website for Warsaw's Public Transport or JakDojade.pl which also have a mobile app with live transport times and route search, you can also use the app to buy tickets for all public transport in the Warsaw area.
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