Superman is giving up his once-promising career in journalism.

Alter ego Clark Kent is resigning from the post of star reporter at the Daily Planet, the Metropolis newspaper where he has worked since the first Superman comics were published in the 1940s.

DC Comics, which publishes the Superman stories, says Kent will walk out in protest that hard news has given way to too many "soft" entertainment stories.

The move has been prompted by the Daily Planet's takeover by a conglomerate.

The publisher has hinted that the Man of Steel might even go the way of many journalists and become a blogger, in an effort to get his views across to a wider audience.

"Why am I the one sounding like a grizzled ink-stained wretch who believes news should be about, I don't know, news?" says a disillusioned Kent, according to a leaked panel from Wednesday's edition of the comic that appeared on the Newsarama.com website.

New Superman writer Scott Lobdell told USA Today newspaper: "This is really what happens when a 27-year-old guy is behind a desk and he has to take instruction from a larger conglomerate with concerns that aren't really his own."