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• Water on Mars, and other stories - our morning round-up

• Ed Miliband goes for the informal approach: political language unmasked

  Critical discourse analyst Johnny Unger looks at the rhetorical tricks used yesterday in the Labour leader's conference speech.

• A scientist's job is to question our assumptions about the world, not unthinkingly repeat them

  If the "reality" of your event is that you haven't invited any women, then address the failing, writes Alice Bell

• The IPCC meets in Sweden to issue a new critical climate change report, and other stories - our morning news round-up

• Nick Clegg plays the victim card: political language unmasked

  Critical discourse analyst Johnny Unger looks at the rhetorical tricks used today in the Lib Dem leader's conference speech.

• Mind warp

  Distorted and unproven claims about the benefits of brain training have infiltrated Britain’s schools. James Gray says it’s time to think again

• The death of the Milky Way

  There may be darkness ahead, but we’re lucky to have been born in a bright universe, says Marcus Chown

• Can humanists save the world?

  We’re up the creek but, together, we may yet be able to paddle out, says Geoff Kendall

• Have your say at the Rational Parliament

  The first-ever session of the experimental parallel Parliament is approaching fast. Get ready to debate GM food at the Conway Hall.

• Debunking the girls-don't-do-science myth

  It's something of a golden age for biographies of women scientists. Dale DeBakcsy reviews some of the best (and one of the worst)