News & AnalysisAstronomy

Data Dispute Revives Exoplanet Claim

See allHide authors and affiliations

Science  27 Jul 2012:
Vol. 337, Issue 6093, pp. 398
DOI: 10.1126/science.337.6093.398

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


Two years ago, a team of astronomers announced the first detection of a potentially habitable planet outside the solar system, Gliese 581g. But a rival group of planet hunters declared that the first team's measurements had failed to confirm its claim. Now, in a paper published last week, the discovery team concludes that their own analysis of their critics' data shows that Gliese 581g exists after all. The skeptics' model showing no planet in its orbit did not take all of the data into account, they say. But the other group says the assertions still rest on shaky ground.