  Based on photometric observations by TESS, we present the discovery of a
Venus-sized planet transiting LHS 475, an M3 dwarf located 12.5 pc from the
Sun. The mass of the star is $0.274 \pm 0.015~\rm{M_{Sun}}$. The planet,
originally reported as TOI 910.01, has an orbital period of $2.0291025 \pm
0.0000020$ days and an estimated radius of $0.955 \pm 0.053~\rm{R_{Earth}}$. We
confirm the validity and source of the transit signal with MEarth ground-based
follow-up photometry of five individual transits. We present radial velocity
data from CHIRON that rule out massive companions. In accordance with the
observed mass-radius distribution of exoplanets as well as planet formation
theory, we expect this Venus-sized companion to be terrestrial, with an
estimated RV semi-amplitude close to 1.0 m/s. LHS 475 b is likely too hot to be
habitable but is a suitable candidate for emission and transmission
spectroscopy.
