This year, Prof. Dr. Bruce Draine from Princeton University (Princeton, New Jersey, USA) will deliver the twentieth Oort Lecture. The lecture will be given on Tuesday April 21, 2009, at 8 p.m., in the Groot Auditorium of the Academiegebouw of Leiden University, Rapenburg 73, in Leiden.
The title of the lecture is:
"Cosmic Dust - Mother Nature's Galactic Beauty Powder"
Further information on the topic and the speaker are here. Free tickets can be ordered until April 7 from Ms. Liesbeth van der Veld by telephone at +31 71 527 5833 or (preferably) by e-mail at . Reserved tickets will be sent to your address about two weeks in advance.