The National Observatory of Athens is the oldest research institute in Greece, established in 1842 in the centre of Athens. In 1999 NOA was reorganised in four Institutes: a) Environmental Research and Sustainable Development, (b) Astronomy and Astrophysics, (c) Geodynamics and (d) Space Applications and Remote Sensing.

(Artist view of the Observatory in the 19th century)

NOA employs about 100 scientists, supported by a further 120 technical and administrative personnel. At present, there are more than 100 research projects running at NOA.