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  Today in History—April 11: A Mysterious Medieval Chess Set 　　 　　Today in History is a daily newsletter from Britannica. (more) Today in History—April 11: A Mysterious Medieval Chess Set Written by Michele Metych Michele Metych is the lead editor for Today in History at Encyclopædia Britannica. Michele Metych Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience...
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  Taskmaster 　　Taskmaster British television program Written by Arpit Nayak Arpit Nayak is an associate editor at Encyclopedia Britannica. Arpit Nayak Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated Apr. 8, 2026...
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  How Do Sea Otters Stay Warm? 　　 　　Sea otters A mother sea otter (Enhydra lutris) with her pup in the icy waters of Prince William Sound, Alaska. (more) How Do Sea Otters Stay Warm? Written by Kai Shanebeck Kai (he/they) is an ecologist and parasitologist who studies the parasites of aquatic mammals (otters, seals, mink) as well as vector-borne and zoonotic disease dynamics. Kai Shanebeck Fact-checked...
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  Huajiang Canyon Bridge 　　 　　Huajiang Canyon Bridge When it was opened on September 28, 2025, the Huajiang Canyon Bridge became the highest bridge in the world. (more) Huajiang Canyon Bridge bridge, Guizhou province, China Also known as: Huajiang Grand Canyon Bridge Written by Aman Kumar Aman Kumar is an editor at Encyclopaedia Britannica. Aman Kumar Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee...
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  What Is Relative Humidity? 　　 　　Fog on Oak Island, Nova Scotia, Canada As air cools near Earth's surface, fog results when relative humidity rises to 100 percent. (more) What Is Relative Humidity? Written by John P. Rafferty John P. Rafferty writes about Earth processes and the environment. He serves currently as the editor of Earth and life sciences, covering climatology, geology, zoology, and other...
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  The Pitt 　　 　　The Pitt Doctors (from left) Dennis Whitaker (Gerran Howell), Baran Al-Hashimi (Sepideh Moafi), Frank Langdon (Patrick Ball), and Robby (Noah Wyle) tending to a patient in episode 10 of season two of the HBO series The Pitt. (more) The Pitt American television series Written by Fred Frommer Fred Frommer is a sports historian, author, and writer who has written...
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  What Is the Urbi et Orbi Blessing? 　　 　　Pope Leo XIV on his election day On May 8, 2025, the newly elected pope, Leo XIV, delivered his first remarks to the world, a message that included the formal blessing known as the Urbi et Orbi (Latin: “To the City and to the World”). (more) What Is the Urbi et Orbi Blessing? Written by René Ostberg René Ostberg...
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  Communist Party of India (Marxist) 　　 　　Sitaram Yechury Communist Party of India (Marxist) General Secretary Sitaram Yechury speaking to media in Kolkata, August 13, 2021. (more) Communist Party of India (Marxist) political party, India Also known as: CPI(M) Written by Andrew Pereira Andrew Pereira is an editor at Encyclopaedia Britannica. He covers a variety of topics, with a focus on Indian politics, foreign policy, and...
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  Ismail Omar Guelleh 　　 　　Ismail Omar Guelleh Djibouti's president, Ismail Omar Guelleh, attends the opening ceremony of the 24th Africa-France summit, at Cannes, France, February 15, 2007. (more) Ismail Omar Guelleh president of Djibouti Written by Amy McKenna Amy McKenna is a senior editor, primarily focused on geography and history matters pertaining to sub-Saharan Africa. She joined Encyclopaedia Britannica in 2004. She was...
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  Today in History—April 10: The Day Bananas Debuted In London 　　 　　Today in History is a daily newsletter from Britannica. (more) Today in History—April 10: The Day Bananas Debuted In London Written by Melissa Petruzzello Melissa Petruzzello (she/her) is Assistant Managing Editor and covers plants, algae, fungi, insects, spiders, renewable energy and environmental engineering. She also handles certain topics in Christianity,... Melissa Petruzzello Fact-checked by Britannica Editors Encyclopaedia Britannica's editors...
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  Today in History—April 9: The Day Baseball Moved Indoors 　　 　　April 9, 1965: Mickey Mantle launched an orange baseball into the center-field stands (more) Today in History—April 9: The Day Baseball Moved Indoors Written by Michele Metych Michele Metych is the lead editor for Today in History at Encyclopædia Britannica. Michele Metych Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether...
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  Today in History—April 8: The Accidental Excavation of the Venus de Milo 　　 　　April 8, 1870: A farmer excavating stone blocks from a long-crumbled wall found a statue in a hollow (more) Today in History—April 8: The Accidental Excavation of the Venus de Milo Written by Michele Metych Michele Metych is the lead editor for Today in History at Encyclopædia Britannica. Michele Metych Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject...
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  Five Downed Fighter Pilots Who Made History 　　 　　Leader of the Black Sheep World War II flying ace Pappy Boyington. (more) Five Downed Fighter Pilots Who Made History Written by Tracy Grant Tracy Grant is a senior editor at Encyclopaedia Britannica. She previously served as editor in chief, the first woman to hold that title. Tracy Grant Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas...
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  Are Declining Birth Rates a Problem? 　　Are Declining Birth Rates a Problem? Written by Arpit Nayak Arpit Nayak is an associate editor at Encyclopedia Britannica. Arpit Nayak Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated Apr....
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  Why Does Head Hair Grow Indefinitely but Not Body Hair? 　　 　　The growth cycle of human hair Human hair growth can be divided into three phases: the anagen (growth) phase, the catagen (transition) phase, and the telogen (resting) phase. In the anagen phase the papilla induces basal cells to begin development of a new hair. The new hair, growing both upward and downward, moves alongside the old hair and eventually...
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  myosin 　　 　　The structure of actin and myosin filaments Myosin proteins bind to actin filaments and use ATP hydrolysis to drive contraction and movement, acting as a molecular motor in muscles and nonmuscle cells. (more) myosin protein Written by Kara Rogers Kara Rogers is the senior editor of biomedical sciences at Encyclopædia Britannica, where she oversees a range of content from...
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  Hidden Figures 　　 　　Janelle Monáe in Hidden Figures Janelle Monáe as Mary Jackson in Hidden Figures (2016). (more) Hidden Figures film by Melfi [2016] Written by Karen Sottosanti Karen Sottosanti is a writer and editor who works in educational publishing. Karen Sottosanti Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of...
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  Carol Kaye 　　Carol Kaye American musician Also known as: Carol Smith Written by Kara Rogers Kara Rogers is the senior editor of biomedical sciences at Encyclopædia Britannica, where she oversees a range of content from medicine and genetics to microorganisms. She joined Britannica in 2006 and... Kara Rogers Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have...
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  Today in History—April 7: That time the U.S. briefly lost a nuclear bomb 　　 　　Today in History is a daily newsletter from Britannica. (more) Today in History—April 7: That time the U.S. briefly lost a nuclear bomb Written by Michele Metych Michele Metych is the lead editor for Today in History at Encyclopædia Britannica. Michele Metych Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether...
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  Christopher Allen Wright 　　 　　Christopher Allen Wright U.S. Energy Secretary Christopher Wright was confirmed on February 3, 2025, by a vote of 59–38 in the U.S. Senate. (more) Christopher Allen Wright American politician, businessman and engineer Also known as: Chris Wright Written by Anca Gurzu Anca Gurzu is Cipher’s chief Europe correspondent, based in Brussels, Belgium. Anca Gurzu Fact-checked by Britannica Editors Encyclopaedia...

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