Probably not. Britain is currently a member of the European Space Agency, so there are fears its departure from the E.U. would deny astronauts like former International Space Station resident Tim Peake from making the journey into orbit. But the space flight program is distinct from the E.U., to the extent that Canada is an associate member. British business minister Jesse Norman has confirmed that the U.K.’s future involvement in the ESA will be “handled separately from E.U. discussions.” The E.U. states should be happy with this, given the U.K. is one of the agency’s biggest budget contributors.