Mimas’ density is 1.15 times that of liquid water which suggests Mimas’ is composed mostly of water-ice and a small amount of rocky material! The Solar System’s second largest planet both in mass and size, Saturn is best known for its rings. This makes it only 1/9th the size of the Earth’s moon, and approximately 1/300th the size of the planet Saturn. Now, researchers1 from the CNRS, the Paris Observatory – PSL and the University of Franche-Comté have shown that Mimas, one of Saturn’s moons, acted as a kind of remote snowplough, pushing apart the ice particles that make up the rings. The adjectival form of Mimas is Mimantean or Mimantian.. It was named after Mimas' discoverer, Sir William Herschel. Whether you're doing it for the nerd cred or the pie, this week on #10Things, we've got all the ways you can celebrate #PiDay with NASA. April 8th 2024 - Total Solar Eclipse in Mexico & the USA! Thanks to these findings, scientists may view the presence of gaps in the rings of an exoplanet as a clue that it could have moons with oceans. Mimas is responsible for clearing the material from the Cassini Division, the gap between Saturn's two widest rings, the A Ring and B Ring. The impact that blasted this crater out of Mimas probably came close to breaking the moon apart. Mimas, also designated Saturn I, is a moon of Saturn which was discovered in 1789 by William Herschel. Even after his death, Mimas' legs – which were serpents – hissed vengeance and sought to attack his killer. Cassini view of Mimas's trailing hemisphere, showing craters up to 6 km deep and 1-km-deep chasmata (grooves). Less than 123 miles (198 kilometers) in mean radius, crater-covered Mimas is the smallest and innermost of Saturn's major moons. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are registered trademarks of Amazon.com, Inc. or its affiliates.”, Odyssey Magazine 2020 © powered by GeneratePress, Best Telescope for Beginners | The Guide for 2020, Aquila Constellation | Facts about the Eagle, Apus Constellation | The Bird of Paradise, Best Telescope under $1000 – A Complete Guide 2020. Image Gallery 3, pp. Space Exploration Timeline Mimas is tidally locked: it keeps the same face toward Saturn as it flies around the planet, just as our Moon does with Earth. Mid 2021 - LUCY Spacecraft - To Jupiter's Trojans!  He named them after Titans specifically because Saturn (the Roman equivalent of Cronus in Greek mythology), was the leader of the Titans and ruler of the world for some time. The International Astronomical Union now controls the official naming of astronomical bodies, Director, NASA Planetary Science Division: Solar System moons of Saturn: Mimas Saturn's moon Mimas in an image taken by the Cassini spacecraft. This is similar to Earth’s Moon! Template:Annotated image 8, No. With a diameter of 396 kilometres (Template:Convert/round mi) it is the smallest astronomical body that is known to be rounded in shape because of self-gravitation. The impact that made this crater must have nearly shattered Mimas: fractures can be seen on the opposite side of Mimas that may have been created by shock waves from the impact travelling through Mimas's body.. The surface is icy and heavily cratered. Launch Europa Clipper - To Jupiter's Moon, Launch of ESA's Jupiter Icy Moons Explorer, Despite the moon being discovered in 1789, it wasn’t until 1847 that the name Mimas was given to it to avoid confusion after additional. It orbits the planet in just under 24 hours, and during this time it is always facing Saturn – we call this being tidally locked to the planet. Although Mimas is heavily cratered, the cratering is not uniform. Mimas was a son of the Greek goddess Gaia. Mimas [MY-mass] is one of the innermost moons of Saturn. Dragonfly is a NASA mission to deliver a rotorcraft to Saturn’s moon Titan to advance our search for the building blocks of life. Mimas's most distinctive feature is a giant impact crater 130 kilometres (Template:Convert/round mi) across, named Herschel after the discoverer of Mimas. It is not quite big enough to hold a round shape, so it is somewhat ovoid with dimensions of 129 x 122 x 119 (miles 207 x 197 x 191 kilometers, respectively). Human Astronomy Timeline Amalthea – The Largest Inner Moon Of Jupiter, Quick Facts About Neptune’s 13 Small Moons, Dysnomia – The Only Moon Of The Distant Dwarf Planet Eris, Learn About Titan The Incredible Planet-like Moon, Fun Facts About Mars’ Small Lumpy Moon Deimos, Io – The Most Volcanic Body In The Solar System, The Mysterious Triton Neptune’s Largest Moon, Tethys – Learn All About The Frozen Ice Moon, List Of The Solar System’s 30 Biggest Moons, Enceladus | Cool Facts About The Active Icy World, Ganymede – Facts About The Largest & Most Massive Moon, Mir Space Station | Soviet Russia’s Space Outpost. Its most distinguishing feature is a giant impact crater – named Herschel after the moon's discoverer – which stretches a third of the way across the face of the moon, making it look like the Death Star from "Star Wars." November 8th 2022 - Total Lunar Eclipse Mimas Saturn's moon : Mimas is made mostly of water ice mixed with rocks. Infrared images from NASA's Juno spacecraft are providing the first glimpse of Ganymede's icy north pole. As well as craters on it’s surface, Mimas also has many chasms. NASA Official: Its low density suggests that it consists almost entirely of water ice, which is the only substance ever detected on Mimas. Scientists from CNRS, the Paris Observatory – PSL and the University of Franche … Although Mimas is heavily cratered, the cratering is not uniform. According to the researchers’ calculations, the Cassini Division is likely to take around 40 million years to close up again. It is named after Mimas, a son of Gaia in Greek mythology. La nouvelle Moon 2G vous permet … It is also the smallest astronomical body in the solar system to be naturally rounded by gravity; all smaller moons are irregular in shape. This phenomenon, known as orbital resonance, pushes the ice particles apart, producing a relatively narrow gap. However, the state of Mimas’ surface, which still bears the scars of relatively ancient meteorite impacts, does not tally with such a scenario. The researchers suspected a link between Mimas, one of Saturn’s moons, and the band, since there is a region at the inner edge of the Division where the particles orbit around Saturn exactly twice as fast as Mimas. This short orbital distance means that it only takes Mimas just over 22 and a half hours to complete one full trip around the planet. The next full Moon will be early Sunday morning, July 5, 2020. In 2010, NASA revealed a temperature map of Mimas, using images obtained by Cassini. “odysseymagazine.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. 42–43, http://saturn.jpl.nasa.gov/science/moons/mimas/, http://www.dmuller.net/spaceflight/mission.php?mission=pioneer11&appear=black&mtype=scet&showimg=yes&dispwide=no, http://www.newscientist.com/article.ns?id=dn6999, http://www.nasa.gov/mission_pages/cassini/whycassini/cassini20100329.html, http://www.nasa.gov/mission_pages/cassini/multimedia/pia12867.html, "Saturn moon looks like Pac-Man in image taken by Nasa spacecraft", http://www.telegraph.co.uk/science/space/7537170/Saturn-moon-looks-like-Pac-Man-in-image-taken-by-Nasa-spacecraft.html, Images of Mimas at JPL's Planetary Photojournal, Mimas atlas (July 2010) from Cassini images, Figure "J" is Mimas transiting Saturn in 1979, imaged by Pioneer 11, https://nasa.fandom.com/wiki/Mimas_(moon)?oldid=23911. When seen from certain angles, Mimas resembles the Death Star, a fictional space station and superweapon known from the 1977 film Star Wars. Meteors & Meteorites The ellipsoidal shape of Mimas is especially noticeable in some recent images from the Cassini probe. Although Mimas is quite spherical, it still has an ellipsoidal shape – we know this taken from picture from the NASA mission called Cassini-Huygens. Mimas is the son of Gaia in Greek mythology, which is where the moon Mimas takes it’s name. NASA has taken the next steps toward building Space Launch System (SLS) solid rocket boosters for as many as six additional flights. Mimas is one of the well known moons that orbits the planet Saturn, and it is one of the most well known too. Its low density suggests that it consists almost entirely of water ice, which is the only substance ever detected on Mimas. At 144 km in diameter, the crater nearly covers one-third of the moon, which in itself has a diameter of 396km. The warmest regions, which are along one edge of Mimas, create a shape similar to the video game character Pac-Man, with Herschel Crater assuming the role of an "edible dot" or "power pellet" known from Pac-Man gameplay. This paradox has prompted the "Mimas Test" by which any theory that claims to explain the partially thawed water of Enceladus must also explain the entirely frozen water of Mimas. Well, we know that Mimas is the closest of Saturn’s major moons, and it’s also one of the smallest too. Amanda Barnett Herschel resembles the concave disc of the Death Star's "superlaser". March 2021 - Launch the James Webb Telescope! Discovered in 1789 by William Herschel, Mimas has a diameter of 396 km making it the 21st largest moon in the solar system! Science Writer: There also will be a partial penumbral eclipse of the Moon.