Tonight, it will be the brightest object in the night sky as it soars through the southern sky at 9:49pm.
The International Space Station is the largest spacecraft ever to be put into orbit, and the most expensive thing ever built, at approximately €100 billion.
The huge craft is roughly the size of Croke Park, and its massive solar panels reflect sunlight, making it appear extremely bright when seen from Earth.
The ISS orbits Earth roughly 350km above the planet’s surface.
“The International Space Station will be so bright as it blazes through the sky that it will be impossible to miss,” said David Moore, editor of Astronomy Ireland magazine.
“We want everyone to go outside tonight and see for themselves this breathtaking achievement of human technology!”
The times of when the ISS will pass over Ireland each day can be found online for free at www.astronomy.ie/iss. This time will be updated each afternoon the ISS is visible in Irish skies.
Astronomy Ireland also runs a text service where you will be reminded of the time a couple of hours before the Space Station passes overhead.
To subscribe, simply text SPACE to 57003. Only one message will be sent per day that the ISS is visible, and the service costs €1 per messages received.
Proceeds go towards promoting science and astronomy in Ireland.
More information on the International Space Station can be found at www.astronomy.ie/iss