5 February – SES' Astra 1A satellite starts broadcasting, beginning SES's dominance of the European satellite communication market.
April – June
19 April – 150th anniversary of Luxembourg's independence.[1]
6 May – Representing Luxembourg, Park Cafe finish twentieth in the Eurovision Song Contest 1989 with the song Monsieur.
13 June – The constitution is amended in numerous ways, affecting electoral eligibility requirements, expanding education access, and requiring counter-signature of Grand Ducal decree.