The Team leads the Imaging X-ray Polarimetry Explorer (IXPE), a NASA-ASI mission launched in 2021 December. Of particular interest are studies of x-ray polarization from cosmic sources-active galaxies, supernova remnants, pulsar wind nebulae, and accreting neutron stars and black holes. The X-ray Astronomy Team invites applications to perform observational or theoretical research in x-ray astronomy and high-energy astrophysics.