He was for many years the editor-in-chief of the Estonian Encyclopaedia.
Aasmäe produced many radio shows and was a member of Tarkade klubi, an Estonian question-and-answer radio programme, for many years.
He was a member of Club of Rome Estonian section.
On 2 December 2014, Aasmäe died following an accidental fall down a staircase from the third floor of his office at the Estonian Encyclopedia publishing house in Tallinn.
- 3rd Class of the Order of the National Coat of Arms (received 23 February 2006)