7th IAA Planetary Defense Conference 2021

Vienna, Austria
IAA Planetary Defense Conference 202126-30 April 2021
Intro PDC 2021
7th IAA Planetary Defense Conference

The International Academy of Astronautics will hold the 7th IAA Planetary Defense Conference in 2021 in Vienna, Austria. The Conference will be hosted by the UN Office for Outer Space Affairs (UNOOSA).

The PDC organizers recognize the uncertainties and challenges caused by the COVID-19 pandemic. We intend to announce a decision regarding conference format (i.e., in-person / virtual) by 15 Jan 2021. Those interested in PDC participation are encouraged to register to receive updates via email (please join our e-newsletter below).

PDC 2021

PDC 2021 Call for Papers is now available. (pdf version leaflet)

The International Academy of Astronautics will hold its 7th conference  in 2021 in Vienna, Austria. The bi-annual conference brings together world experts to discuss the threat to Earth posed by asteroids and comets and actions that might be taken to deflect a threatening object.

  • Highlight/Spotlight topic areas
  • Key International and Policy Developments
  • Advancements in Near Earth Object (NEO) Discovery
  • New NEO Characterization Results
  • Deflection & Disruption Modeling and Testing
  • Mission & Campaign Design
  • Impact Management & Consequences
  • Disaster Management & Response
  • Public Education and Communication
  • The Decision to Act: Political, Legal, Social and Economic Aspects

To pre-register please use the following link:

The conference will include a hypothetical NEO/Earth impact event scenario that will be part of the conference (similar to what was done at the 2013, 2015, 2017 & 2019 conferences). Conference attendees may also use the hypothetical scenario as their topic for papers and presentations.

Although this scenario is realistic in many ways, it is completely fictional and does NOT describe an actual potential asteroid impact.

  • Pre-Registration
    1 Sept 2020
  • Abstract Submission Date
    1 Sept 2020 to 15 Dec 2020
  • Paper Submission Date
    31 March 2021
Conference Program
General information on the program
About PDC 2021
Learn more about the PDC 2021.

The 2021 PDC will be held at the Vienna International Centre (VIC). All media needs to be accredited to access the VIC. A link to media accreditations will be provided.

Call For Papers

Find the leaflet including topic areas for papers...

Abstract Submission

Find the submission process including templates and info regarding the student competition...

IAA Publications

Publications related to the conference


Information on Visa


Information to apply for sponsorship...


Application for Scholarship

under construction

Past Conferences

List of past conferences...

Conference Venue
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Primary Sponsors
The primary sponsors of the conference
Past Conferences
PDC 2021 Speakers
Learn speakers of the PDC 2021.
Gerhard Drolshagen
Gerhard Drolshagen
University of Oldenburg
William H. Ailor
William H. Ailor
Jean-Michel Contant
Jean-Michel Contant
IAA Secretary General
IAA Member Basic Sciences Section
Detlef Koschny
European Space Agency
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    Event Details