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Discover the Cosmos: Top 15 Fun Facts About Charon That'll Amaze You!

illustration of charon
Get ready to dive into the intriguing world of Charon, Pluto's mysterious and captivating moon, as we unveil some astonishing fun facts that will surely leave you starstruck!

1. Telescope Smudge Surprise

In a cosmic game of "spot the difference", astronomer James Christy mistook Pluto's colossal sidekick for a smudge on his telescope lens: Turns out, that "smudge" was Charon, Pluto's largest moon, discovered in 1978 and named after the mythological ferryman who chauffeured souls across the river Styx. Boasting a surface of water ice and a snazzy red polar cap made of tholins, Charon is the most sizable satellite relative to its host planet in our solar system.
Source => britannica.com

2. Charismatic Charon's Chilly Cha-Cha

Ladies and gentlemen, gather 'round for the Charismatic Charon's Chilly Cha-Cha: a celestial tango of epic proportions! Featuring organic macromolecules called tholins, this reddish-brown dance floor at Charon's north pole is composed of vital ingredients for life, thought to be released by cryovolcanic eruptions or shipped from Pluto's atmosphere.
Source => en.wikipedia.org

3. Awkward Cosmic Tango

Like two shy kids slow dancing at prom, Pluto and its largest moon, Charon, are eternally locked in an awkward tango, never wanting to peek at each other's faces: This cosmic dance is due to their tidal locking, meaning they always present the same side to each other, causing a wobble in Pluto's surface features as they orbit around a common center of mass – but fear not, stargazers, you can still "sneak up" on these celestial wallflowers since they orbit the Sun from different angles.
Source => aanda.org

4. Ice and Mordor's Secrets

In a celestial tale of ice and Mordor, Charon rose from Pluto's shadow to reveal secrets as dark and intriguing as Sauron himself: Discovered by James Christy on June 22, 1978, this moon of icy allure forced a reassessment of Pluto's size and mass, while also unveiling its other moons. With a surface dominated by water ice and a dark north polar region aptly called "Mordor," Charon's chilling beauty is underscored by its cryovolcanoes, cryogeysers, and a geological past that whispers of heart-stopping mysteries in our universe.
Source => en.wikipedia.org

Underworld Ferryman Connection

5. Underworld Ferryman Connection

Before toll booths started charging an arm and a leg, there was Charon, the underworld’s friendly neighborhood ferryman, who only required a simple coin in exchange for a one-way ride across the River of Woe: Serving as the official boat captain for Hades, Charon is fascinatingly depicted on ancient Attic funerary vases, later evolving into a gentlemanly figure. He's famous for navigating the swampy waters of the rivers Acheron and Styx, and even has a dinosaur named after him – Charonosaurus – found near the Amur River. As if that wasn't enough, Pluto's largest moon also shares his legendary name.
Source => en.wikipedia.org

6. Argo Chasma, Charon's Grand(est) Canyon

If the Grand Canyon and Charon's Argo Chasma entered a "World's Greatest Canyon" competition, Earth's geological wonder would leave with its tail between its legs: This colossal crevasse on Pluto's moon, Charon, stretches over 185 miles (300 kilometers) in length and reaches depths of 5.5 miles (9 kilometers) – outdoing our famous landscape. Be prepared to marvel at Argo Chasma's soaring cliffs, captured by NASA's New Horizons spacecraft back in 2015.
Source => cnet.com

7. Celestial Collision Birth

Knock, knock! Who's there? It's Charon - Pluto's moon, the galactic oddball: Unlike our boring neighbor planets which formed from that sleepy solar nebula, Charon was most likely born through a high-speed celestial collision with proto-Pluto, resulting in its rocky-icy composition and its significant lack of personal space – er, atmosphere.
Source => news.mit.edu

8. Mordor Macula Magic

In a land far, far away, where wizards of organic chemistry concoct eerie red potions on a frozen moon named Charon, there lies a mystical region dubbed "Mordor Macula": This enchanting area on Charon's North Pole is covered in tholins, which are organic compounds most likely formed from methane released by ancient cryovolcanic eruptions when expanding ice from its subsurface ocean broke through the surface.
Source => earthsky.org

9. Can-You-Even Canyon Competition

Charon, the less famous sibling of Pluto, has always been slightly overshadowed – but never underestimate the underdog, for they hold some truly grand surprises up their celestial sleeves: Charon's impressive canyons plunge to depths over four times greater than the Grand Canyon on Earth, with some reaching a jaw-dropping 4 miles deep!
Source => geekwire.com

Cosmic Dance Partners

10. Cosmic Dance Partners

Did you hear? Pluto and Charon are the dance partners of the cosmos, gliding on the dance floor with a permanent twirl, refusing to look away from each other's stunning beauty: The cosmic dance is actually a spin-phase lock, making Pluto and Charon always present the same face to each other while orbiting a shared center of mass, creating fascinating celestial events like mutual eclipses.
Source => pluto.jhuapl.edu

11. Mind Canyon-Blasted

If you think the Grand Canyon is the ultimate Earthly ditch, get ready to have your mind canyon-blasted: Charon, Pluto's moon, boasts a colossal crevasse called Argo Chasma, stretching over 430 miles (700 km) long and plunging as deep as 5.5 miles (9 km), dwarfing our terrestrial trench by being four times longer and seven times deeper, as discovered by the New Horizons probe in 2015.
Source => space.com

12. Moon-to-Planet Dynamic Duo

Picture this: Pluto and Charon are the solar system's Ross and Rachel, forever entwined in a celestial dance so close, you'd think they were on a break: Charon measures a staggering half of Pluto's diameter, making them the largest moon-to-planet duo in the solar system!
Source => pluto.jhuapl.edu

13. Fashionable Gassy Season Changes

You know how humans get a little...gassy when the seasons change? Well, so does Charon, Pluto's moon, and it creates quite the show in space fashion: During equinox periods, Charon's frozen methane sublimates and creates a surge of activity, lasting about four Earth years, resulting in a remarkably unique appearance. This process forms a short-lived exosphere and contributes to the production of reddish organic compounds, known as tholins, which give Charon's northern polar cap its distinctive ruddy color. All of this was uncovered through experiments and laboratory work at the Southwest Research Institute in Texas.
Source => space.com

14. Charon's Ultimate Chasm Party

When Charon decided to throw a chasm party, it went all out: The New Horizons spacecraft discovered the Serenity Chasma, a gargantuan canyon system on Charon's surface, over 1,000 miles long and 4 miles deep, formed as the planet's interior froze and expanded to the point of splitting the surface open.
Source => pluto.jhuapl.edu

Peek-a-Boo Moon Discovery

15. Peek-a-Boo Moon Discovery

In a scene straight out of a cosmic rom-com, Charon played peek-a-boo with a lovestruck astronomer as it teasedly revealed itself from behind Pluto's chubby cheek: Our main character, American astronomer James W. Christy, discovered this shy satellite in 1978 and was so smitten, he named it after his wife, Charlene (nickname "Char"), with a dash of scientific flair by adding the "-on" suffix found in "proton" and "electron."
Source => en.wikipedia.org

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