20 June — Same-sex marriage legalized. The parliament approved amendments to the country's Family Law Act legalizing same-sex marriage and allowing same-sex couples to adopt children. The amended act will go into effect on January 1, 2024. This made Estonia the first Baltic and former USSR country to do so.[4]
9 October - Estonian satellite ESTCube-2 was launched from Kourou, French Guiana, with the European Space Agency's Vegalaunch vehicle at 4:36a.m. EEST.[5] The satellite failed to deploy from its launch vehicle, and was destroyed on reentry.[6]