President Trump speaks to the press with first lady Melania Trump and Acting Food and Drug Administration Commissioner Norman Sharpless (left) and Health and Human Services Secretary Alex Azar in the Oval Office at the White House on Wednesday. Nicholas Kamm/AFP/Getty Images hide caption

Anne Wojcicki, chief executive officer and co-founder of 23andMe, speaks during the TechCrunch Disrupt 2018 summit in San Francisco in September 2018. David Paul Morris/Bloomberg via Getty Images hide caption

These human embryo-like structures (top) were synthesized from human stem cells; they've been stained to illustrate different cell types. Images (bottom) of the "embryoids" in the new device that was invented to make them. Yi Zheng/University of Michigan, Ann Arbor hide caption

An Alabama helmet on December 31, 2016, at the Georgia Dome in Atlanta, GA. Scott Donaldson/Getty Images hide caption

Erika Starke, left, is comforted by her son, Michael Haub, as they attend a second funeral service for New York Fire Department firefighter Michael Haub, in Franklin Square, N.Y. The New York City medical examiner identified more of his remains recovered at ground zero. Eduardo Munoz Alvarez/AP hide caption

An NPR investigation finds that the military court and prison at Guantánamo Bay, Cuba, have cost taxpayers billions of dollars, with billions more expected. The war court headquarters at Camp Justice, as seen through a broken window at an obsolete air hangar at the U.S. Navy base at Guantánamo Bay, Cuba, on February 28, 2015. Emily Michot//Miami Herald/Tribune News Service via Getty Images hide caption

Jazz helped Mary Lou Williams stay alive — but after several draining decades as a musician, she quit the scene. When she returned, she claimed her true power as one of jazz's fiercest advocates. Metronome/Getty Images hide caption