Factbox: From Vatican to space, tributes flood in for David Bowie

Taking to Twitter or Facebook, many praised Bowie's groundbreaking music and offered their own recollections of the singer, known for a string of hits such as "Space Oddity" and "Let's Dance". Below are some of the tributes to Bowie, who released his last album "Blackstar" on Friday, also his birthday: DUNCAN JONES, BOWIE'S SON, POSTING A PICTURE OF THE SINGER ON TWITTER: "Very sorry and sad to say it's true. For now, it is appropriate to cry." QUEEN OFFICIAL TWITTER ACCOUNT, POSTING A VIDEO OF