In Japan, embattled RIKEN chief to step down By Dennis NormileMar. 6, 2015 Nobel laureate Ryoji Noyori had been engulfed in stem cell scandal
RIKEN announces penalties related to stem cell fiasco By Dennis NormileFeb. 10, 2015 Lab group says it would have fired lead author, if she had not already resigned
Discredited STAP cells were likely embryonic stem cells By Dennis NormileDec. 26, 2014 RIKEN panel alleges more misconduct
RIKEN team gives up on STAP cells By Dennis NormileDec. 19, 2014 Lead author of two retracted papers resigns her position after failing to reproduce new approach to generating stem cells
Managers of discredited STAP stem cell study refund salary By Dennis NormileOct. 24, 2014 Embattled RIKEN officials voluntarily return 1 to 3 months of pay over fiasco
EXCLUSIVE: Nature reviewers not persuaded by initial STAP stem cell papers By Gretchen Vogel, Dennis NormileSep. 11, 2014 Tough peer-review of "magical" approach didn't stop ultimate publication of now-retracted stem cell papers
RIKEN to investigate STAP papers yet again By Dennis NormileSep. 4, 2014 Panel will examine whether new evidence indicates further research misconduct
In Japan, official effort to replicate STAP stem cells comes up empty By Dennis NormileAug. 27, 2014 RIKEN announces center at heart of controversy will be reorganized, renamed
Nature retracts controversial stem cell papers By Dennis NormileJul. 2, 2014 RIKEN says lead researcher Obokata will come back to the lab to repeat every step of her experiments
Evidence mounts against new stem cell method By Dennis NormileJun. 16, 2014 Senior co-author doubts existence of STAP cells
Key Researcher Agrees to Retract Both Disputed Stem Cell Papers By Dennis NormileJun. 4, 2014 Most authors now agree with retraction of controversial STAP studies, but questions linger
Researcher Behind Stem Cell Controversy Agrees to Retraction By Kelly ServickMay. 28, 2014 Lead author on STAP stem cell papers announces willingness to retract … selectively
RIKEN Makes Verdict on Two Problematic Stem Cell Papers Final By Dennis NormileMay. 8, 2014 Judgment of misconduct by lead author Haruko Obokata will stand; she now faces disciplinary procedures
RIKEN to Check 20,000 Papers for Doctored Images and Plagiarism By Dennis NormileMay. 5, 2014 Image manipulation scandal continues to snowball
RIKEN Investigator Now Under Investigation By Dennis NormileApr. 25, 2014 Head of panel that concluded manipulating images constituted misconduct is alleged to have done the same thing
Embattled Stem Cell Researcher Apologizes but Defends Her Work By Dennis NormileApr. 9, 2014 Haruko Obokata blames errors on inexperience but maintains the results are still valid