7th IAA Planetary Defense Conference 2021

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

On-line WebEx Conference

Hosted by the United Nations Office for Outer Space Affairs, in cooperation with the European Space Agency


In consideration of the prevailing circumstances, the PDC organizers have decided that the 2021 PDC will be conducted virtually.
Please note that participation will be limited to the maximum number of selected applicants as per capacity of the online platform.

PDC 2021

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

The International Academy of Astronautics will hold its 7th conference  on April 26-30, 2021. 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

Working language

The working language of the Conference will be English. All participants are required to have good English language skills.

To register to the conference, 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 31 Jan 2021
  • Paper Submission Date
    16 April 2021
Conference Program
General information on the program
About PDC 2021
Learn more about the PDC 2021.

Media are encouraged to register for this on-line Conference, following registration link above. A dedicated media event is planned.

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


Registration link


Information to apply for sponsorship...


Application for Scholarship

under construction

Past Conferences

List of past conferences...

Primary Sponsors
The primary sponsors of the conference
Secondary Sponsors
The secondary sponsors of the conference
PDC supporters
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