A here exists only in relation to a there, not the other way around.
There's this only because there's that; if we don't look up, we'll never know what's down.

Paul Auster
Moon Palace

I have been fortunate to work with a wide range of activities centred on communication of astronomy to the public, with some of the best people in the profession.

Here is my own little Top-10 (or so) list of favourite achievements:

1. Authoring the book The Hands-on Guide for Science Communicators, Springer New York, 2006, ISBN 0387263241
2. Co-authoring the book Lysfænomener i Naturen, Høst & Søn, 1998, ISBN 8714294621
3. Co-authoring the book Europe to the Stars — ESO’s first 50 years of exploring the southern sky
4. Managing the conception and implementation of the International Year of Astronomy 2009 (according to unofficial UNESCO sources "the most successful [international] year so far")
5. Receiving the Tycho Brahe Medal in 2005
6. Developing the strategic concept for the operations and content of the ESO Supernova Planetarium & Visitor Centre
7. Directing the movie Europe to the Stars
8. Directing the movie Eyes on the Skies - 400 Years of Telescopic Discovery
9. Directing the movie Hubble - 15 Years of Discovery
10. Being Press Officer for International Astronomical Union in a period the IAU became more known than ever before due to the re-classification of dwarf planet Pluto. Read more about the work during this hectic period of the 2006 IAU General Assembly here.
11. Co-authoring the book Hubble - 15 Years of Discovery, Springer New York, 2006, ISBN 0387285997 (also in Finnish, German, Portuguese, Chinese and simplified Chinese)
12. Co-authoring the book Eyes on the Skies, Wiley 2009, (German, Finnish, Korean, Japanese, Slovenian and Chinese)
13. Co-authoring the book Hidden Universe (also in German, Japanese, Chinese, Finnish)
14. Co-authoring the book Cosmic Collisions (also in German)
15. Managing the Portal to the Universe project
16. Leading the lasershow Ambient LaserTrance in the Dome 1994 (co-production with Morten Rasmussen).
17. Writing my Master's Thesis: Compund Redshift Catalogues and their Application to Redshift Distortions of the Two-point Correlation Function. At one point in 1996 I had the largest collection of galaxy redshifts in the world...
18. Leading the FITS Liberator project
19. Initiating the Hubblecast project
20. Leading the lasershow Beat the Visions 1993 (co-production with Morten Rasmussen).
21. Originator of the ESOcast project
22. Initiating and managing Tripping on the Final Frontier, event for the 5th anniversary of Tycho Brahe Planetarium
23. Initiating the AVM metadata project, that later became VAMP in a collboration with Robert Hurt and Adrienne Gauthier
24. Initiating the ESO and Hubble Hidden Treasures competitions