In science news around the world, the U.S. Food and Drug Administration takes the unprecedented step of informing a clinical trial sponsor, Acceleron Pharma, that it had violated the law that requires details of such studies to be posted to the federal repository ClinicalTrials.gov. The World Health Organization declares the latest outbreak of Ebola in the Democratic Republic of the Congo officially over. At a confirmation hearing, U.S. senators grill Eric Lander, the nominee to lead the White House9s science office, suggesting he understated the contributions of two female scientists to the discovery of the CRISPR gene-editing technology. NASA extends the mission of its small helicopter on Mars, Ingenuity, sending it to scout sites for the Perseverance rover to sample. The U.S. Senate confirms Bill Nelson as NASA administrator.