The Emerald Isle really looks quite green in American astronaut Terry W. Virt’s photo, as he himself noted.
Ireland has previously been a favorite of astronauts on board the ISS, from Canadian Chris Hadfield, who built up a massive Irish following while in space, to American Cady Coleman, who brought with her two Irish flutes belonging to the Chieftains, to Douglas Wheelock, who sent a St. Patrick's Day greeting from the ISS last year.
Virts has been in outer space since November 23, 2014. Yesterday he also tweeted a St. Patrick's Day appropriate solar flare.
— Terry W. Virts (@AstroTerry) March 17, 2015
He also tweeted an otherworldly green glow over Ireland, Scandinavia and the UK just last month.