THE astronaut who put Ireland on the map with his tweets from the International Space Station will soon touch down here.
Canadian national Commander Chris Hadfield (53) posted photographs of Dublin and Ireland on Twitter as he travelled through space during his five-month stint on board the Space Station.
He is set to sign copies of his new book in December on a whistle-stop visit to Dublin.
Showing his love of all things Irish, he sent the first ever tweet in Irish from space -- a photo of Dublin with the caption: "Ta Eire fioralainn! Land of green hills and dark beer. With capital Dublin glowing in the Irish night."
The commander of Expedition 35 on the Space Station also tweeted pictures of himself wearing the green and wishing everyone a happy St Patrick's Day earlier this year.
In one of his last posts from Earth's orbit, he performed a rendition of David Bowie's Space Oddity.
Chris's daughter Kristin is a student at Trinity College, and he won't be far away from that seat of education when he lands at Eason on O'Connell Street on December 14 to sign copies of An Astronaut's Guide To Life On Earth.
While details are yet to be announced, it is hoped that Commander Hadfield will spend two hours signing his book. He has also been lined up as a keynote speaker for an event at Dublin's Convention Centre on January 9 next.