Recent Results from the Fourth Flight of the ANITA Experiment

The ANtarctic Impulsive Transient Antenna (ANITA), a NASA Long-Duration Balloon payload, completed its fourth flight in December 2016, after 28 days of flight time. ANITA searches for Askaryan emission from interactions of ultra-high-energy (>~10^18 eV) neutrinos in Antarctic ice. ANITA is also sensitive to geomagnetic radio emission from extensive air showers. I will present recently released results from the fourth flight of ANITA, which include the strongest constraints on the diffuse neutrino flux at energies above 10^~19.5 eV and the detection of tens of extensive air shower events.