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Today's featured article
Habitable zones of TRAPPIST-1 and the Solar System TRAPPIST-1 is a cool red dwarf star with seven known exoplanets. It lies in the constellation Aquarius about 40.66 light-years away from Earth. It has a mass of about 9% of the Sun and is estimated to be 7.6 billion years old, making it older than the Solar System. The discovery of the star was first published in 2000. Observations in 2016 from the Transiting Planets and Planetesimals Small Telescope (TRAPPIST) led to the discovery of two orbiting terrestrial planets, and five more were found in 2017. It takes the seven planets between about 1.5 and 19 days to orbit around the star. They are likely tidally locked to TRAPPIST-1, leading to permanent day on one side and night on the other. Their masses are comparable to that of Earth. Up to four of the planets orbit at distances where temperatures are suitable for the existence of liquid water (diagram pictured), and are thus potentially hospitable to life. This has drawn interest from both researchers and popular culture. (Full article...) Recently featured: iMac G4 Merchant's House Museum Marie Sophie Hingst Archive By email More featured articles About
Did you know...
Bertoncelj at the 2015 European Games ... that Sašo Bertoncelj (pictured) competed on MasterChef Slovenia during his gymnastics career? ... that the Knox Mountain Hillclimb is considered very challenging due to every corner being off camber? ... that the works of Yaelokre have been compared to The Lord of the Rings, Gorillaz, and the illustrations of Where the Wild Things Are? ... that Camp Growden was envisioned to become a winter sports complex with toboggan runs? ... that Paddy Higson was known as the "mother of Scottish film"? ... that the robotic costumes used in the Doctor Who episode "The Robot Revolution" were 3D printed in thirty-four different pieces before being assembled? ... that Google searches for the word "fortnight" in the US increased by 868% on the release day of the song "Fortnight" by Taylor Swift? ... that the Green Bay Packers signed Tom Birney as their new kicker in 1979, even though he had not kicked a field goal in more than five years? ... that a 2015 issue of the Strawberry Newspaper features Hello Kitty discussing military conflicts in Afghanistan, Somalia, and Ukraine? Archive Start a new article Nominate an article

In the news

José Mujica

Former president of Uruguay José Mujica (pictured) dies at the age of 89.
The Kurdistan Workers' Party announces its dissolution, ending its insurgency against Turkey.
Robert Francis Prevost is elected as Pope Leo XIV, becoming the first Catholic pope born in the United States.
Friedrich Merz is elected Chancellor of Germany and sworn in alongside his coalition government.
Zhao Xintong defeats Mark Williams to win the World Snooker Championship.
In horse racing, Sovereignty, ridden by Junior Alvarado, wins the Kentucky Derby.

On this day...

May 17: International Day Against Homophobia, Biphobia and Transphobia

Anne of Denmark

1590 – Anne of Denmark (pictured) was crowned the queen consort of Scotland in a ceremony at Holyrood Abbey in Edinburgh.
1863 – American Civil War: At the Battle of Big Black River Bridge in Mississippi, Union forces under John A. McClernand defeated a Confederate rearguard and captured around 1,700 men.
1900 – The first copies of the children's novel The Wonderful Wizard of Oz by L. Frank Baum were printed.
1954 – The U.S. Supreme Court ruled in the landmark case Brown v. Board of Education, outlawing racial segregation in public schools because "separate educational facilities are inherently unequal" and therefore unconstitutional.
1987 – An Iraqi jet fired two Exocet missiles at the American frigate USS Stark, killing 37 personnel and injuring 21 others.

Caroline of Brunswick (b. 1768)
Erik Satie (b. 1866)
Little Gerhard (b. 1934)
Maggie Laubser (d. 1973)

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