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Today's featured article Mars is the fourth planet from the Sun. It was formed approximately 4.5 billion years ago, is a terrestrial planet and is the second smallest of the Solar System's planets with a diameter of 6,779 km (4,212 mi). A Martian solar day (sol) is 24.5 hours and a Martian solar year is 1.88 Earth years (687 Earth days). Mars has two small and irregular natural satellites: Phobos and Deimos. Carbon dioxide is substantially present in Mars's polar ice caps and thin atmosphere. It has the highest mountain in the solar system, Olympus Mons, and the largest canyon, Valles Marineris. There are large annual temperature swings on the surface, between −78.5 °C (−109.3 °F) and 5.7 °C (42.3 °F) – similar to Earth's seasons. Due to its geological history, the possibility of past or present life on Mars remains of great scientific interest. Mars has been explored by uncrewed spacecraft and rovers, and is an attractive target for future human exploration missions. (This article is part of a featured topic: Solar System.) Recently featured: Doom (2016 video game) Thank You (Meghan Trainor album) Leucippus On this day... May 14: Feast day of Saint Matthias (Catholicism); Independence Day in Israel (2024) Monument to the Battle of Lewes 1264 – Second Barons' War: King Henry III was defeated at the Battle of Lewes (monument pictured) and forced to sign the Mise of Lewes, making Simon de Montfort the de facto ruler of England. 1857 – Mindon Min was crowned as King of Burma. 1863 – American Civil War: Union troops captured Jackson, the capital of Mississippi. 1931 – Five people were killed in Ådalen, Sweden, as soldiers opened fire on an unarmed trade union demonstration. 1948 – David Ben-Gurion publicly read the Israeli Declaration of Independence at Independence Hall in Tel Aviv. Fanny Imlay (b. 1794) Mary Seacole (d. 1881) Miranda Cosgrove (b. 1993) Taruni Sachdev (b. 1998; d. 2012) More anniversaries: May 13 May 14 May 15

In the news Nemo Switzerland, represented by Nemo (pictured) with "The Code", wins the Eurovision Song Contest. A series of solar storms impact Earth, creating aurorae seen farther from the poles than usual. Former prime minister of Fiji Frank Bainimarama is sentenced to one year in prison for attempting to pervert the course of justice. Mahamat Déby is declared the winner of the Chadian presidential election. Flooding in Rio Grande do Sul, Brazil, leaves more than 140 people dead and at least 130 others missing. Ongoing: Israel–Hamas war timeline Myanmar civil war Russian invasion of Ukraine timeline War in Sudan timeline Recent deaths: Surjit Patar Jim Simons Sam Rubin Hans Wahlgren Yvonne Mokgoro Sean Burroughs Picture of the day Wikipedia:POTD row/May 14, 2024 Did you know? Spoonful and jar of mad honey ... that hallu­ci­no­genic honey (pictured) was used as a biological weapon more than 2000 years ago? ... that after failing to qualify for prestigious races as an athlete, Mounir Akbache became a rabbit? ... that the memorial Ivančena was created to honor members of the Silesian Scout Resistance who were executed for their part in the resistance to Nazi occupation during World War II? ... that Lewis W. Green was one of the two members of the first graduating class of Centre College and later became its president? ... that "Toy Town" was said to have "almost destroyed" the happy hardcore scene? ... that nearly a thousand elections for local executives were held in Indonesia between 2005 and 2013, with an average of around one every three days? ... that although Agnes Kimball was a popular recording artist of opera and musical theatre, she never appeared as a singing actress on the stage? ... that 287 Broadway was once called "the most succulent cast-iron street-show in all New York"?

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