The rounded cloud of ARSIA MONS (AMEC) is an orofrafic cloud detected above the dormant volcano ARSIA MONS of 20 km altitude on Mars. The cloud made an appearance over the volcano before, in 2018. - posted in Major & Minor Planetary Imaging: A few days ago I noticed something on one of my images - a linear albedo feature that doesnt correspond to anything on other images I have - and then promptly forgot about it. See more THEMIS Images of the Day by geological subject. The southern solstice is the period of the year when the Sun is in the southernmost position in the martian skies, just like 21 December on Earth. The cloud can be seen in this view taken on 10 October by the Visual Monitoring Camera (VMC) on Mars Express – which has imaged it hundreds of times over the past few weeks – as the white, elongated feature extending 1500 km westward of Arsia Mons. Revue de presse – 15/11/2020. 15 novembre 2020. The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. En effet, un mystérieux nuage martien a réapparu au-dessus du volcan, et nous offre une vue pour le moins spectaculaire. Arsia Mons Elongated Cloud ili AMEC (hrv. Click here for an annotated version of this image, which is via ESA. You can also choose to be emailed when someone replies to your comment. These are ice rich clouds over the summit of Arsia Mons. Despite its location, the European Space Agency … Mystic Mountain, a pillar of gas and dust standing at three-light-years tall, bursting with jets of gas from fledgling stars buried within, was captured by Nasa's Hubble Space Telescope in February 2010, The first ever selfie taken on an alien planet, captured by Nasa's Curiosity Rover in the early days of its mission to explore Mars in 2012, Death of a star: This image from Nasa's Chandra X-ray telescope shows the supernova of Tycho, a star in our Milky Way galaxy, Arrokoth, the most distant object ever explored, pictured here on 1 January 2019 by a camera on Nasa's New Horizons spaceraft at a distance of 4.1 billion miles from Earth, An image of the Large Magellanic Cloud galaxy seen in infrared light by the Herschel Space Observatory in January 2012. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. Read our full mailing list consent terms here. Nous concevons et vous aidons à réaliser les projets innovants qui changeront votre futur. Images are provided of a plume-shaped white cloud located on the Western flank of Arsia Mons during apparitions going back to 2005.Images of the plume-shaped white cloud … These images of the cloud, which can reach up to 1800-km in length, were taken on 17 and 19 July by the Visual Monitoring Camera (VMC) on Mars Express, which has been studying the Red Planet from orbit for the past 16 years. In the 2005 case, more water ice was present than in the previous years at the time the pictures were obtained. and Terms of Use. NASA/JPL/MSSS Dated: 16.02.2002. Photo credit: ESA/GCP/UPV/EHU Bilbao A bizarre thin elongated cloud has recently appeared over the 12.4-mile high Arsia Mons volcano on Mars. The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. Your email address is used only to let the recipient know who sent the email. par Marie-Emmanuelle BAILLEUL. Create a commenting name to join the debate, There are no Independent Premium comments yet - be the first to add your thoughts, There are no comments yet - be the first to add your thoughts. As a comparison, the cone-shaped volcano has a diameter of about 250 km; a view of the region with labels is provided here. Thursday 30 July 2020 13:19. Ce nuage a une structure en forme de queue, il est constitué d'eau et de glace, et peut gagner plus de 1 800 kilomètres de longueur. We do not guarantee individual replies due to extremely high volume of correspondence. Click here for an annotated version of this image. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. Click here for an annotated version of this image. googletag.cmd.push(function() { googletag.display('div-gpt-ad-1449240174198-2'); }); A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity. “We have been investigating this intriguing phenomenon and were expecting to see such a cloud form around now,” explains Jorge Hernandez-Bernal, PhD candidate at the University of the Basque Country. It allows our most engaged readers to debate the big issues, share their own experiences, discuss real-world solutions, and more. At a Glance. Why does it only form in the early morning? Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. The information you enter will appear in your e-mail message and is not retained by Phys.org in any form. The gaseous body was seen floating over the 20-kilometer high Arsia Mons volcano on the Red Planet, in images captured by the ESA. Bien que le volcan Arsia Mons de Mars ne soit pas en éruption, il s’offre tout de même en spectacle actuellement. part may be reproduced without the written permission. A Martian year is approximately 687 Earth days. Our journalists will try to respond by joining the threads when they can to create a true meeting of independent Premium. Arsia Mons is 12 miles high and 270 miles wide, dwarfing Mauna Loa, Earth’s largest volcano, which is only 6.3 miles high and 75 miles wide, and mostly underwater. Imaging transient … The most insightful comments on all subjects will be published daily in dedicated articles. A mysteriously long, thin cloud has again appeared over the 20-km high Arsia Mons volcano on Mars. Avec le développement du télétravail, de nouveaux risques menacent les entreprises. Arsia is the southernmost of the three Tharsis Montes. July 2020; Conference: XIV Reunión Científica de la Sociedad Española de Astronomía It appeared first thing in the morning, built across the landscape, then drifted away from the volcano and disappeared by early afternoon. “The extent of this huge cloud can't be seen if your camera only has a narrow field of view, or if you're only observing in the afternoon” said Eleni Ravanis, who works with the camera equipment on the Mars Express. This cloud has a … July 2020; Conference: XIV Reunión Científica de la Sociedad Española de Astronomía We study the daily cycle of this cloud, showing how the morphology and other parameters of the cloud evolved with local time. Want to bookmark your favourite articles and stories to read or reference later? Image via ESA . Are you sure you want to mark this comment as inappropriate? The Mars Express science team have now named the cloud the Arsia Mons Elongated Cloud, AMEC. So, for how long has it been disappearing and reappearing? This is the first time that Chandra has detected this phenomenon from a star other than the Sun, Dark, narrow, 100 meter-long streaks running downhill on the surface Mars were believed to be evidence of contemporary flowing water. The Arsia Mons Elongated Cloud (AMEC) is a lee cloud that is spotted over the 20-kilometers (12 miles) high Arsia Mons dormant volcano on Mars. "Luckily for Mars Express, the highly elliptical orbit of the spacecraft, coupled with the wide field of view of the VMC instrument, lets us take pictures covering a wide area of the planet in the early morning. As they study this cloud more, they hope to discover why it appears and reappears only in the morning hours. - posted in Major & Minor Planetary Imaging: A few days ago I noticed something on one of my images - a linear albedo feature that doesnt correspond to anything on other images I have - and then promptly forgot about it. Image credits: ESA/NASA/JPL/Malin Space Systems/Mike Malaska From the MEX-VMC image overlaid on the Celestia coordinate grid, the cloud dimensions were estimated. Apart from any fair dealing for the purpose of private study or research, no The strange cloud was seen in 2018 where it stretched over 1,500km of the planet’s surface in late September, before disappearing in mid-October. What topics in a Physics degree don't appear in an Astrophysics degree? Arsia Mons Elongated Cloud ili AMEC (hrv. The existing Open Comments threads will continue to exist for those who do not subscribe to Independent Premium. The Arsia Mons Elongated Cloud (AMEC) is a lee cloud that is spotted over the 20-kilometers (12 miles) high Arsia Mons dormant volcano on Mars. The content is provided for information purposes only. Study or research, no part may be reproduced without the written permission study this cloud has appeared. 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