Desmond Tutu smiles after he became Anglican archbishop of Cape Town in 1986. His wife, Leah, is at his side. David Turnley/Corbis/VCG via Getty Images hide caption
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President George H.W. Bush greets soldiers at Fort Stewart, Ga., after he addressed family members of the 24th Infantry Division stationed in Saudi Arabia and personnel at the facility in February 1991. Dennis Cook/AP hide caption
U.S. President George H.W. Bush speaks during a fundraiser in Dallas, on Nov. 1, 1991. Marcy Nighswander/AP hide caption
Aretha Franklin, pictured in 1968, has died. Known as the Queen of Soul, she recorded 17 top 10 singles. Express Newspapers/Getty Images hide caption
On Wednesday the South Carolina Education Lottery announced it will not be delivering more than $30 million in prizes to players with winning tickets printed as a result of a computer glitch. Fitria Ramli / EyeEm/Getty Images/EyeEm hide caption
Scientists tagged over 30 great white sharks last fall — more than they had ever done in a single season. Courtesy Stanford University — Block Lab Hopkins Marine Station hide caption
Great White Sharks Have A Secret 'Cafe,' And They Led Scientists Right To It
An artist's rendering of the Chicxulub impact crater on Mexico's Yucatan Peninsula from an asteroid that slammed into the planet some 65 million years ago. SPL/Science Source hide caption
Asteroid Impact That Wiped Out The Dinosaurs Also Caused Abrupt Global Warming
Scientists have videotaped sharks traveling a 500-mile-long "shark highway" in the Pacific Ocean. Andy Mann/Waitt Foundation/Pacifico hide caption
The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission, shown in an artist's rendering, will measure tiny fluctuations in Earth's gravitational field to show how water moves around the planet. NASA/JPL hide caption
Bishop Michael Bruce Curry delivering the sermon during the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle in St George's Chapel, Windsor Castle. OWEN HUMPHREYS/AFP/Getty Images hide caption
Santa Fe High School sophomore Averi Gary (center) is comforted during a vigil after the deadly mass shooting in Texas on Friday. David J. Phillip/AP hide caption
The debate over whether an audio clip says "yanny" or "laurel" is tearing the Internet apart. Westend61/Getty Images hide caption
The Estonian municipality has approved using the marijuana leaf as the official government symbol. It will appear as the government logo, on flags and crest. Susan Montoya Bryan/AP hide caption
The planet, known as Kepler-452b, was believed to be about 60 percent larger than our planet and within the habitable zone of its star. NASA Ames/JPL-Caltech/T. Pyle hide caption
Jane Tansell, one of the two handlers responsible for the rodent detection dogs, looks on from the background as a camera captures wildlife on South Georgia Island earlier this year. Oliver Prince/Courtesy of South Georgia Heritage Trust hide caption
Bioluminescent waves crash against rocks at Torrey Pines State Beach in San Diego on Monday night. Stephen Bay hide caption
Scientists say the lava from Kilauea's new eruption may continue to flow for months or even years. U.S. Geological Survey via AP hide caption
Days, Weeks, Years? Scientists Say Hawaii Volcano Eruption Has No End In Sight
An artist's rendition of NASA's InSight lander, which is expected to launch on Saturday morning. InSight will monitor the Red Planet's seismic activity and internal temperature. NASA/JPL-CalTech hide caption
An artist's rendering shows the reactor's core is about the size of a paper towel roll and could provide a decade's worth of electricity to future missions. NASA hide caption
Elon Musk speaks at the International Astronautical Congress on Sept. 29 in Adelaide, Australia. On Wednesday, the Tesla CEO took analysts and the media to task. Mark Brake/Getty Images hide caption