Who wrote coldplay hit the scientist?

"The Scientist" is a song by the British rock band Coldplay, and it was primarily written by the band's lead vocalist, Chris Martin. The song features introspective lyrics and a melancholic melody, reflecting themes of regret and longing. It was released as part of their 2002 album "A Rush of Blood to the Head." The collaborative effort of the entire band contributed to its distinctive sound and emotional depth.