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  Why Is Sleep Important? 　　 　　The sleeping brain visualized by positron emission tomography Metabolic activity in the brain while awake and during sleep can be tracked according to glucose consumption by using positron emission tomography (PET). In general, red areas in PET scans indicate regions of highest metabolic activity, where neurons are consuming the largest amounts of glucose. (more) Why Is Sleep Important? Written...
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  Why Is Japan’s Population Decreasing? 　　Why Is Japan’s Population Decreasing? 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 global affairs. Andrew Pereira 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...
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  12 Key Dates in the History of Photography 　　 　　Kodak Brownie camera A girl taking a photograph with a Kodak Brownie camera, c. 1935. (more) 12 Key Dates in the History of Photography Written by Alicja Zelazko Alicja Zelazko is Associate Editor, Arts and Humanities, covering topics in the visual arts, architecture, music, and performance. Before joining Encyclopædia Britannica in 2017, she worked at the Art... Alicja Zelazko...
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  Amber Glenn 　　 　　Amber Glenn American figure skater Amber Glenn competing in the free skate event at the world championships in Montreal, March 22, 2024. (more) Amber Glenn American figure skater Written by Fred Frommer Fred Frommer is a sports historian, author, and writer who has written for a host of national publications. Fred FrommerAll Fact-checked by Britannica Editors Encyclopaedia Britannica's editors...
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  Today in History—February 18: From Kansas to the Kuiper Belt 　　 　　February 18, 1930: How a farm boy found Pluto (more) Today in History—February 18: From Kansas to the Kuiper Belt 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...
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  otaku 　　 　　World Cosplay Summit Contestants posing in costume at the 2009 World Cosplay Summit in Nagoya, Japan, an international event that highlights the global reach of otaku culture. (more) otaku anime subculture Written by Laura Payne Laura Payne is a freelance writer whose work covers many topics. She is a former Wayne State University linguistics instructor. Laura PayneAll Fact-checked by...
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  2026 Israeli Elections 　　 　　The incumbent Benjamin Netanyahu's Likud party leads the polls, but his coalition is falling behind. (more) 2026 Israeli Elections Israeli government Written and 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...
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  How Do Fertility Drugs Work? 　　 　　Gonadotroph cell About 10 percent of the pituitary gland consists of gonadotroph cells (indicated by arrows), which secrete hormones known as gonadotropins. Examples of gonadotropins include luteinizing hormone and follicle-stimulating hormone, which are essential to fertility. (more) How Do Fertility Drugs Work? Written by Kara Rogers Kara Rogers is the senior editor of biomedical sciences at Encyclopædia Britannica, where...
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  fezolinetant 　　 　　Nonhormonal menopause drug Fezolinetant is a prescription treatment for moderate to severe vasomotor symptoms associated with menopause. (more) fezolinetant drug Also known as: Veoza, Veozah 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...
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  Gordie Howe International Bridge 　　 　　North American connection Aerial view of the Gordie Howe International Bridge between Detroit, Michigan, U.S., and Windsor, Ontario, Canada. (more) Gordie Howe International Bridge bridge, United States-Canada Also known as: Detroit River International Crossing, New International Trade Crossing(Show More) Written by Aman Kumar Aman Kumar is an editor at Encyclopaedia Britannica. Aman Kumar Fact-checked by Britannica Editors Encyclopaedia Britannica's...
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  2026 T20 World Cup Highlights 　　 　　Shimron Hetmyer West Indies batter Shimron Hetmyer (right) playing against Scotland during the ICC Men's T20 Cricket World Cup at Eden Gardens, Kolkata, India, February 7, 2026. (more) 2026 T20 World Cup Highlights Written by Tushaar Kuthiala Tushaar Kuthiala has over a decade of experience in news media, content creation, and digital marketing. Over the course of his career,...
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  What Is a Hamate Bone? 　　 　　Bones of the hand The hand contains 27 bones divided into three main groups: 8 carpals (wrist), 5 metacarpals (palm), and 14 phalanges (fingers). The hamate bone is a small, hook-shaped carpal bone located in the wrist on the ulnar (pinky) side of the hand. (more) What Is a Hamate Bone? Written by Kara Rogers Kara Rogers is the...
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  2026 T20 World Cup: Players to Watch 　　 　　Champions again English cricket team players celebrating after winning the 2022 ICC Men's T20 World Cup final at the Melbourne Cricket Ground, Melbourne. (more) 2026 T20 World Cup: Players to Watch Written by Tushaar Kuthiala Tushaar Kuthiala has over a decade of experience in news media, content creation, and digital marketing. Over the course of his career, Tushaar has...
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  Today in History—February 15: The Headline That Led America to War 　　 　　Today in History is a daily newsletter from Britannica. Want to learn more about what happened on February 15, or any other day of the year? Sign up to receive the newsletter in your inbox every morning. (more) Today in History—February 15: The Headline That Led America to War Written by Michele Metych Michele Metych is the lead editor...
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  Today in History—February 14: The Day Chicago’s Bootlegging War Spiraled Out of Control 　　 　　Today in History is a daily newsletter from Britannica. Want to learn more about what happened on February 14, or any other day of the year? Sign up to receive the newsletter in your inbox every morning. (more) Today in History—February 14: The Day Chicago’s Bootlegging War Spiraled Out of Control Written by Michele Metych Michele Metych is the...
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  Today in History—February 13: Farewell to Peanuts 　　 　　February 13, 2000: Good grief! A beloved comic strip ends (more) Today in History—February 13: Farewell to Peanuts Written by Amy Tikkanen Amy Tikkanen is Managing Editor at Encyclopaedia Britannica. Amy Tikkanen 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...
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  Nordic combined 　　 　　Jens Lurås Oftebro Norwegian Nordic combined athlete Jens Lurås Oftebro at a World Cup event in Oberhof, Thuringia, Germany, January 18, 2026. (more) Nordic combined sport Written by Laura Payne Laura Payne is a freelance writer whose work covers many topics. She is a former Wayne State University linguistics instructor. Laura Payne Fact-checked by Britannica Editors Encyclopaedia Britannica's editors...
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  Jeffrey Epstein’s Islands 　　 　　Jeffrey Epstein's island Little St. James Island featured pools, villas, and a helipad. It was also the site of sex trafficking, according to Epstein's accusers. (more) Jeffrey Epstein’s Islands Inside the sex offender’s most notorious lair Written by Tracy Grant Tracy Grant is a senior editor at Encyclopaedia Britannica. She previously served as editor in chief, the first woman...
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  Artemis II 　　 　　Artemis II crew (From left) NASA astronauts Christina Koch, Reid Wiseman (seated), and Victor Glover, Jr., and Canadian Space Agency astronaut Jeremy Hansen are the crew of the Artemis II mission, which is to fly around the Moon in 2026. (more) Artemis II U.S. space mission Written by Erik Gregersen Erik Gregersen is a senior editor at Encyclopaedia Britannica,...

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