• Educational Activities for Students

    The educational program for children at Thissio Visitor Center

  • Doridis Telescope

    Doridis Telescope

  • WMO certificate
  • ttod_photo01
  • August

    August 2017 | Photo: Theofanis Matsopoulos


    Julius Schmidt, CHARTE DES GEBIRGE DES MONDES, 1878, ΝΟΑ Library

  • simonvouet English2

    Simon Vouet (1590 - 1649), The Muses Urania and Calliope (1634)

    National Gallery of Art, USA

  • Τηλεσκόπιο Αρίσταρχος English

    Aristarchos Telescope, Helmos Observatory

  • Helmos National Geographic English

    Helmos Observatory, Photography: Harry Katzjaeger
    Source: "Top Shots," National Geographic, June 2012

  • Eskimo Nebula NGC2392 English

    Eskimo Nebula (NGC2392), Aristarchos Telescope, Observer: Dr. Ioannis Alikakos (NOA)

    Digital Image Processing: Theofanis Matsopoulos.

  • Μουσείο Γεωαστροφυσικής English

    Geoastrophysics Museum, Thissio

  • Εκπαίδευση στο ΕΑΑ English

    Summer School in Astrophysics

  • Τηλεπισκόπηση-Γή English

    Remote Sensing & Earth Observation

  • Greece from ISS English

    Greece from the International Space Station

    Photography: Paolo Nespoli, ESA astronaut

  • 3D Sun English

    3D Image of the Sun from the Solar Dynamics Observatory (SDO) mission of NASA.

    Source: NASA's Solar Dynamics Observatory

  • Helicorder English

    Analogue seismograph recorder

  • Geothermal English
  • Παλιρροιογραφος English

    Tide-gauge of the Instittute of Geodynamics at Vlyhada, Santorini.

  • Πειραμα Ulusses English
    Recovered  Ocean Bottom Seismometers on board of research vessel in the frame of the ULYSSES scientific program
  • Meteo historic archive english

    The historic archive of NOA/IERSD with recordings of climatic observations dated from the mid-19th century is one of the oldesr sources of climatic information for Eastern Medirranean.

  • Meteo time-series graph English

    The evolution of the average annual temperature in Athens from the mid-19th century until today, according to the records of the historic station NOA/IERSD (Hill Nymphs Thission).

  • Researchers Night 2014

    Pnyx Hill: Citizens observe the night sky through telescopes of NOA

    Researchers Night 2014

  • Researchers Night 2014

    Pnyx Hill: Citizens observe the night sky through telescopes of NOA

    Researchers Night 2014

NOA News

Call for students and school professors to participate to the Corinth Rift Laboratory school 2020
22 Jul 2020

In the wider region of the Corinthian Gulf, a concerted effort is taking place for more than 30 years, for the advancement of understanding of geophysical processes (e.g. earthquakes, landslides, tsunamis). Over time, extensional deformation rates of up to 15 millimeters per year are observed, between the North and South coast of the Corinthian Gulf, a phenomenon unique in Europe and worldwide for areas beyond tectonic boundaries.
A part of the onshore North Corinthian Gulf (coastal areas of so [ ... ]

WebGIS UNITWIN/UNESCO Chairs Programme
08 Jul 2020

The UNESCO Chair at Benecon developed a Web-GIS including all the geographic data and information related to UNITWIN/UNESCO Chairs worldwide. On the Web-GIS platform it is possible to find geographical information, which can favorite international cooperation and also contribute to strengthening North-South-South cooperation, and collaborate around the Sustainable Development Agenda 2030. The Web-GIS includes information for around 40% of the 830 UNESCO Chairs and UNITWIN cooperation progr [ ... ]

ESA/Hubble Releases the Hubble Catalog of Variables
24 Sep 2019

ESA/Hubble is pleased to announce the release of the Hubble Catalog of Variables (HCV), the first full, homogeneous catalogue of variable sources based on archival HST data. The HCV was developed over four years by a team of astronomers at the National Observatory of Athens, led by Alceste Bonanos and sponsored by ESA in collaboration with STScI. The HCV is the deepest catalogue of variables available. In total, the HCV includes 84 428 candidate variable sources (out of 3.7 million HSC sources t [ ... ]

ESA extends the NELIOTA project to 2021
07 Dec 2018

We are happy to announce the extension of the NELIOTA project to January 2021. Given the successful operation of the project and the detection of 55 lunar impact flashes to date, ESA has decided to continue the project by funding 24 additional months of lunar monitoring observations with the Kryoneri telescope in order to increase the impact statistics. The following press releases published today by ESA: "Learning from Lunar Lights" and Andor Technology: "Andor Zyla sCMOS Astronomy ca [ ... ]

Other Articles

ΝΟΑ meets the Press

  • Astrophysics must be included as a lesson at schools

    Eleftherotypia, 24/11/2013

    Astrophysics must be included as a lesson at schools
    Prof. Kanaris Tsinganos (President of the National Observatory of Athens, Professor at the University of Athens)

  • Science for Environment Policy

    17/10/2013, Science for Environment Policy

    Ozone levels will vary across Europe under furure climatic change

  • Reopening of the Newall Telescope

    19/9/2013, in.gr
    The visitor center at Penteli reopens its doors to the public.

  • GEIN new building ΓΕΙΝ

    7/8/2013, naftemporiki.gr

    Construction of the new building of the Institute of Geodynamics.

  • Mapping of active fire cores

    7/8/2013, kathimerini.gr

    Real-time mapping of active fιre cores with the aid of satellite remote sensing.

  • Socrates Now
    naftemporiki.gr, 6/8/2013
    Performance 'SOCRATES NOW' for the 23d Philosophy Congress at the premises of the National Observatory of Athens
  • Europa Nostra

    europanostra.org, 16/6/2013

    Placido Domingo and Androulla Vassiliou Starred the Reception at the National Observatory of Athens.

  • Proba-3

    May 2013, Ε&Τ Newsletter

    Research in the Sun with central Greek participation.

  • Probing into the great depths where earthquakes occur

    May 2013, E&T Newsletter

    Probing into the great depths where earthquakes occur!

  • ESA invests in Greek Scientists

    8/3/2013, Zougla.gr

    ESA invests in Greek Scientists

  • Αρίσταρχος-Πρώτη Δημοσίευση

    March 2013,Ε&Τ Newsletter

    Aristarhos telescope brought to light ancient nebula.

  • Πόσο επικίνδυνα είναι τα επεισόδια «αιθαλομίχλης»;

    March 2013, E&T Newsletter

    How dangerous are the episodes of smog;

  • H ελληνική κρίση... ορατή και από το Διάστημα

    15/3/2013, ethnos.gr

    The Greek crisis ... visible from space: Burning wood for heating contributes to smog levels.

Mon Tue Wed Thu Fri Sat Sun

Penteli Visitor Center
Thissio Visitor Center
Educational program on Meteorology
Multiple Events

Real Time Seismicity

Institute of Geodynamics
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Weather Forecast


View the latest weather forecasts, maps, and alerts for Greece on meteo.gr


The Sky Today


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