Event Time: Thursday, August 6, 2020 | 4:00 pm - 5:00 pm
Event Location:
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Add to Calendar 2020-08-06T16:00:00 2020-08-06T17:00:00 Space Exploration and Applied Physics Event Information: The Johns Hopkins University Applied Physics Laboratory is the largest University Affiliated Research Center in the USA.  A core part of the Lab's mission is to provide critical contributions to some of the biggest challenges facing space exploration, through development of innovative technologies, engineering, and space science missions and instruments. In this presentation, I will first give a brief summary of APL's history in space science and relation to the broader US space enterprise, and then focus on some of the active projects at APL to explore our Sun, Ocean Worlds in the Solar System, and the heliosphere.  I will also describe APL's latest efforts to build the first Planetary Defense mission, DART (the Double Asteroid Redirection Test). Event Location: Connect via zoom
Event Time: Thursday, August 13, 2020 | 4:00 pm - 5:00 pm
Event Location:
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Add to Calendar 2020-08-13T16:00:00 2020-08-13T17:00:00 Exploring the Ultrahigh-Energy Universe with ANITA Event Information: The ANtarctic Impulsive Transient Antenna (ANITA) experiment is a balloon-borne radio telescope that, unlike most telescopes, points down in order to try to capture the impulsive Askaryan radio emission from energetic (>1 EeV) neutrinos interacting in the Antarctic ice sheet. Neutrinos at these energies have not yet been detected, but can be produced in interactions of cosmic rays with the cosmic microwave background or directly in astrophysical sources. ANITA is also sensitive to radio signals from extensive air showers, which are usually initiated by cosmic rays but could also potentially be produced by energetic tau neutrinos or exotic particles.  After four flights, ANITA sets the world's most stringent limits on ultrahigh energy neutrino flux above 30 EeV and additionally has detected dozens of extensive air shower candidates. Several of the observed events appear consistent with upward-going air showers, which currently lack a clear explanation. The Payload for Ultrahigh Energy Observations (PUEO) is the planned successor to the ANITA program, which will include significant sensitivity improvements.    Event Location: Connect via zoom