The first total eclipse of the moon visible to Ireland since 2010 will take place in the early hours of Monday morning.
But not only is this a total lunar eclipse, it's a super moon - a coincidence which has not occured for 30 years, and will not occur again for another 30.
The super moon is the period in which the moon is closes to Earth, and so both the brightest and darkest moons will be visible tonight
And not only that, but it will also be a blood moon - in which the moon is at its reddest as the Earth scatters light from the sun.
Astronomy fanatics can go and watch the eclipse from Astronomy Ireland's Dublin HQ between 2am- 6am, with the moon going totally dark just after 3am.
David Moore, Chairman of Astronomy Ireland, says tonight's eclipse will be particularly clear:
You can find out more information about tonight's 'Eclipse Watch' on the Astronomy Ireland website.