Abstract
The ANtarctic Impulsive Transient Antenna (ANITA) is a long-duration balloon
payload funded by NASA, with an array of radio antennas. ANITA scans
the Antarctic ice looking for Askaryan radio emission coming from
ultra-high-energy (>E18 eV) neutrinos interactions. Extensive air showers
coming from ultra-high-energy cosmic rays and hadronic showers from tau
neutrinos can also be detected by ANITA via geomagnetic radio emission.
ANITA currently has the best limit on cosmogenic neutrinos above E19 eV.
This talk will present an overview of the ANITA experiment, the latest
results of the third and fourth flights, and improvements towards future
flights.