Aharonian, F.: ACT experiments and the origin of cosmic rays. Ultra-high energy cosmic rays, neutrinos and photons, Pennsylvania State University, USA (2007)

Strelnikov, D.; Reusch, R.; Krätschmer, W.: Long carbon chains and their oxides: Uv-vis and mid-IR molecular antennas. Bunsentagung 2007 Graz 106. Hauptversammlung der Deutschen Bunsen-Gesellschaft, Graz, Österreich (2007)

Aharonian, F.: Next generation ground-based gamma-ray detectors: scientific motivations, potential and perspectives. ACKS Seminar, Stanford University, USA (2007)

Gabici, S.: Gamma Ray Counterparts of Ultra High Energy Cosmic Ray Accelerators. MPIK - Gentner Colloquium, Heidelberg (2007)

Pétri, J.: Forced oscillations in accretion disks and kHz-QPOs. Seminar, IAAT Tübingen, Germany (2007)

Pétri, J.: Simulations numériques en Astrophysique: les objets compacts et leur environnement. Séminaire, CEA de Saclay (Gif-sur-Yvette), France (2007)

Gabici, S.: Gamma rays from molecular clouds. HESS Collaboration Meeting, Cracow (2007)

Taylor, A.: High Energy Neutrinos from Astrophysical Accelerators of Cosmic Ray Nuclei. NAM (National Astronomy Meeting), Preston, UK (2007)

Pétri, J.: Le vent des pulsars: émission pulsée, accélération et reconnexion magnétique. Séminaire de l'Observatoire de Paris-Meudon, Meudon (LUTH) (2007)

Taylor, A.: The Intergalactic Propagation of Ultrahigh Energy Cosmic Ray Nuclei. The IOP Nuclear and Particle Physics Divisional Conference, Surrey, UK (2007)

Kirk, J.: Magnetic field amplification in GRB shocks. Workshop on short gamma-ray bursts: observation, Schloss Ringberg, Tegernsee (2007)

Aharonian, F.: Ground Based Gamma Ray Astronomy: Status and Perspectives. Astronomy Colloquium, CALTECH, Pasadena, USA (2007)

Aharonian, F.: Supernova Remnants and Pulsar Driven Nebulae. Harvard-Smithsonian Astrophysics Center Colloquium, Cambridge, USA (2007)

Aharonian, F.: Recent results from HESS. Astrophysics Colloquium, MIT, Cambridge, USA (2007)

Aharonian, F.: Very high energy gamma ray sources. Astronomy Colloquium, Leiden Observatory, Leiden, Holland (2007)

Krätschmer, W.: Discovery and Synthesis of C₆₀: An Adventure in Science. International Mini-symposium on Advanced Chemistry and Chemical Education, Sapporo, Japan (2007)

Krätschmer, W.: Discovery and Synthesis of C₆₀: An Adventure in Science. Joint Symposium on "Initiatives for Attractive Education in Graduate Schools of Physics and Chemistry" and "Application of Advanced Analytical Techniques to Chemical Substances", Tokyo, Japan (2007)

Krätschmer, W.: Spectroscopy of Carbon Chain Molecules in Cryogenic Matrices. Joint Symposium on "Initiatives for Attractive Education in Graduate Schools of Physics and Chemistry" and "Application of Advanced Analytical Techniques to Chemical Substances", Tokyo, Japan (2007)

Aharonian, F.: Astrophysical Implications of Very High Energy Gamma-Ray Observations with HESS. Astronomy Colloquium, Max-Planck Institut für Radioastronomy, Bonn, Germany (2007)

Tuffs, R. J.: Normal Galaxies. ISO Legacy Colloquium, Villafranca, Madrid, Spain (2006)