The Space Shuttle will be visible to night if the skys are clear. You will see two stars crossing the sky the International space station and the shuttle . when the Shuttle chases ISS across the sky it is an incredible sight with two \'stars\' blazing across Irish skies — everyone should see this, it\'s history in the making and Ireland just happens to be in the right place at the right time\".
The ISS is the most expensive piece of space hardware ever, representing a collaborative effort of nearly 20 countries, including Ireland.
Currently onboard are two men and one woman — Commander Fyodor Yurchikhin, Flight Engineers Oleg Kotov and Suni Williams.
The space shuttle Discovery will have a crew of seven men.
Currently, the 200-tonne space station is 73 metres wide, and has since its launch in 2000 travelled over two billion kilometres in 48 thousand orbits.
For a couple of minutes every night it outshines every star and planet in the night sky.
To get exact times of the fly-overs, which will take place all weekend, Astronomy Ireland has set up a special newsline — 1550 111 442.