The "asteroid" was designated 2018 CN41 on January 2 by the Minor Planet Center (MPC) at the Harvard–Smithsonian Center for Astrophysics in Cambridge, Massachusetts, after its discovery by an ...
The Carnegie Institution for Science and the International Astronomical Union’s Minor Planet Center has announced the discovery of dwarf planet 2015, the world with an extremely distant aphelion ...
YR4 might force NASA to plan the first-ever space mission to push an asteroid away from Earth. Most likely, though, it's a non-threat.