A bill to amend the Internal Revenue Code of 1954 to allow taxpayers to direct the Internal Revenue Service to transfer any portion of their income tax refunds to a fund established to further the development of manned space flight, and to allow taxpayers to make contributions to such a fund when paying their income tax.

Amends the Internal Revenue Code to allow taxpayers to: (1) direct the Internal Revenue Service to transfer any portion of their income tax refunds to a fund established to further the development of manned space flight; and (2) to make contributions to such a fund when paying their income taxes. Establishes in the Treasury the Challenger Trust Fund to be funded by amounts designated by taxpayers from the refunds for overpayment of taxes.