Medical research advances and health news, The latest engineering, electronics and technology advances, The most comprehensive sci-tech news coverage on the web. A mysteriously long, thin cloud has again appeared over the 20-km (~12 miles / 65,000 feet) high Arsia Mons volcano on Mars.. A recurrent feature, the cloud is made up of water ice, but despite appearances, it is not a plume linked to volcanic activity.Instead, the curious stream forms as airflow is influenced by the volcano’s ‘leeward’ slope − the side that does not face the wind. • Favoring atmospheric conditions exist over Arsia Mons for high altitude clouds. 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. . Quizz – Marketing de la DSI. 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. Read our full mailing list consent terms here. L’imposant volcan Arsia Mons sur Mars atteint plus de 20 kilomètres de haut. Le nuage allongé d'Arsia Mons (AMEC) est un nuage sous le vent observé au-dessus du volcan dormant d'Arsia Mons, haut de 20 kilomètres, sur Mars. The cloud is dubbed the “Arsia Mons Elongated Cloud,” or AMEC, and its reappearance this year did not entirely surprise scientists. It appeared first thing in the morning, built across the landscape, then drifted away from the volcano and disappeared by early afternoon. Due to the sheer scale of this comment community, we are not able to give each post the same level of attention, but we have preserved this area in the interests of open debate. The spiral dust cloud over Arsia Mons can tower 15 to 30 kilometers (9 to 19 miles) above the volcano. Quizz – Move to Cloud - 30 novembre 2020; L’expérience «phygitale» dans les villes : la smart city peut aider les commerces de proximit é - 13 novembre 2020; 1 Commentaire Annuler la réponse. Arsia Mons and cloud, Mars Mars Orbiter Mission took this photo on January 4, 2015, from an altitude of 10,773 kilometers. There's a long, curious cloud lingering over Mars' massive Arsia Mons volcano. The long cloud streaming out from Arsia Mons. Download Image of Arsia Mons Spiral Cloud. It showed up in satellite images for about 90 days. ARSÍA MONS LONG CLOUD! “This elongated cloud forms every Martian year during this season around the southern solstice, and repeats for 80 days or even more, following a rapid daily cycle. The altitude of the clouds and speed they are blown by the wind is enough that there is significant difference in cloud locations between the short delay separating the filters. The autumn of 2018 saw a particularly pronounced version of this orographic cloud, as the planet-wide dust storm finally subsided. Are you sure you want to delete this comment? 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. Neither your address nor the recipient's address will be used for any other purpose. It has since been suggested that they may instead be formed by flowing sand, Morning Aurora: Nasa astronaut Scott Kelly captured this photograph of the green lights of the aurora from the International Space Station in October 2015, {{#verifyErrors}} {{message}} {{/verifyErrors}} {{^verifyErrors}} {{message}} {{/verifyErrors}}, Nasa's groundbreaking decade of space exploration: In pictures, Mysterious Martian cloud reappears above Arsia Mons volcano, Why Nasa's new Mars rover will be its best yet, You may not agree with our views, or other users’, but please respond to them respectfully, Swearing, personal abuse, racism, sexism, homophobia and other discriminatory or inciteful language is not acceptable, Do not impersonate other users or reveal private information about third parties, We reserve the right to delete inappropriate posts and ban offending users without notification. The MCC and MARCI images show a cloud patch over Olympus Mons within the aphelion and a thin cloud trails over Arsia Mons within the perihelion of Mars years. A plume shaped white cloud was imaged a number of times from Sep. 13, 2018 through Nov. 12, 2018 by the Mars Express. A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity.Instead, the curious stream forms as airflow is influenced by the volcano’s ‘leeward’ slope − the side that does not face the wind. Strange events have been observed on Mars since 13 September, when ESA’s Mars Express detected an elongated cloud formation hovering in the vicinity of the Arsia Mons. Mars Express keeps an eye on curious cloud, A better reference genome for the rhesus macaque, Speed of magnetic domain walls found to be fundamentally limited, Mountain hares in Scotland are failing to adapt to climate change, making them more vulnerable to predators, Giant pulses detected in the pulsar PSR J1047−6709, Smaller-than-average male tree crickets found to boost the sound level of their chirps using baffles, Our Beautiful Universe - Photos and Videos. The white and bluish areas in the images are thin clouds of water ice. This document is subject to copyright. A curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. 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. 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. or, by European Space Agency. We study this Arsia Mons Elongated Cloud (AMEC) using images from VMC, HRSC, and OMEGA on board Mars Express, IUVS on MAVEN, and MARCI on MRO. Nom * Adresse de messagerie * Site web. Arsia Mons Elongated Cloud ili AMEC (hrv. A mysterious long, thin cloud has made another appearance over a volcano in Mars. Despite its location, the European Space Agency … The content is provided for information purposes only. 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. You can be assured our editors closely monitor every feedback sent and will take appropriate actions. A mysterious long, thin cloud has made another appearance over a volcano in Mars. Chez ARSIA MONS, nous sommes les Architectes du changement. Imaging transient clouds allows for study of the atmosphere of Mars. As a comparison, the cone-shaped volcano has a diameter of about 250 km; a view of the region with labels is provided here. Independent Premium Comments can be posted by members of our membership scheme, Independent Premium. Nous concevons et vous aidons à réaliser les projets innovants qui changeront votre futur. Are you sure you want to mark this comment as inappropriate? On the leeward slope, water ice condenses, forming a cloud which can extend westward for more than 1000 km. Please be respectful when making a comment and adhere to our Community Guidelines. The Mars Express science team have now named the cloud the Arsia Mons Elongated Cloud, AMEC. It is made up of water ice, but despite appearances it … “We have been investigating this intriguing phenomenon and were expecting to see such a cloud form around now,” said Jorge Hernandez-Bernal of the University of the Basque Country in Spain, who is leading an ongoing study on the cloud. It’s made up of water ice, and while it may look like a smoke plume linked to volcanic activity, its airflow is directly influenced by the volcano’s ‘leeward’ slope, or the non wind-facing side. Water ice cloud patch and trail observed over Olympus and Arsia Mons. What topics in a Physics degree don't appear in an Astrophysics degree? "This elongated cloud forms every martian year during this season around the southern solstice, and repeats for 80 days or even more, following a rapid daily cycle. At a Glance. A year at the Red Planet consists of 668 sols, approximately 687 days, so the seasons last for twice as long. The cloud made an appearance over the volcano before, in 2018, Find your bookmarks in your Independent Premium section, under my profile. Mysterious cloud forms over Arsia Mons volcano on Mars. The rounded cloud of ARSIA MONS (AMEC) is an orofrafic cloud detected above the dormant volcano ARSIA MONS of 20 km altitude on Mars. Image of tail-like cloud over Mars released by ESA (Source: ESA/GCP/UPV/EHU Bilbao) A weird-looking, extremely elongated white cloud is back as it has been spotted after almost two years over an extinct Martian volcano, Arsia Mons which is located just a bit south of the Martian equator. The cloud isn’t linked to any volcanic activity, but its formation is associated with the form and altitude of Arsia Mons. Apart from any fair dealing for the purpose of private study or research, no 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. A Martian year is approximately 687 Earth days. Why does it only form in the early morning? Your feedback will go directly to Science X editors. We study the daily cycle of this cloud, showing how the morphology and other parameters of the cloud evolved with local time. The Arsia Mons cloud has been observed several times over the years. You can find our Community Guidelines in full here. Click here for an annotated version of this image, which is … Image via ESA . Avec le développement du télétravail, de nouveaux risques menacent les entreprises. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. See more THEMIS Images of the Day by geological subject. Quizz – Move to Cloud - 30 novembre 2020; L’expérience «phygitale» dans les villes : la smart city peut aider les commerces de proximité - 13 novembre 2020; Pourquoi et comment réorganiser la DSI - … However, we don’t know yet if the clouds are always quite this impressive”. Arsia Mons sunrise cloud shadow returns? A curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. As they study this cloud more, they hope to discover why it appears and reappears only in the morning hours. The spiral dust cloud over Arsia Mons can tower 15 to 30 kilometers (9 to 19 miles) above the volcano. Stay tuned as scientists continue to investigate, and we reveal more mysteries from Mars. Want an ad-free experience?Subscribe to Independent Premium. It would be a dense cloud of CO2 ice crystals therefore would cast a nice shadow. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. The most insightful comments on all subjects will be published daily in dedicated articles. Arsia is the southernmost of the three Tharsis Montes. 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. A mysteriously long, thin cloud has again appeared over the 20-km-high Arsia Mons volcano on Mars. Get weekly and/or daily updates delivered to your inbox. The southern solstice is when the Sun is in the southernmost area of the sky. Our journalists will try to respond by joining the threads when they can to create a true meeting of independent Premium. Most spacecraft in orbit around the Red Planet tend to observe in the afternoon, however Mars Express is in a privileged position to gather and provide crucial information on this unique effect. "We have been investigating this intriguing phenomenon and were expecting to see such a cloud form around now," explains Jorge Hernandez-Bernal, Ph.D. candidate at the University of the Basque Country (Spain) and lead author of the ongoing study. The plume here rises vertically and then flows Westward away from Arsia. “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. The image covers an area about 1100 kilometers wide. Arsia Mons Elongated Cloud ili AMEC (hrv. Start your Independent Premium subscription today. The present study used the observations from Mars Color Camera (MCC) onboard Mars Orbiter Mission, from the two instruments onboard Mars Reconnaissanc… Nature: "A massive white-dwarf merger product before final collapse", Transparency of a gas compared to a plasma, Science X Daily and the Weekly Email Newsletter are free features that allow you to receive your favorite sci-tech news updates in your email inbox. The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. Threads when they can to create a true meeting of Independent Premium subjects will published. Svjetlo zagrijava zrak na padinama vulkana cloud dimensions were estimated cloud over Mons. Sure you want to mark this comment as inappropriate annotated version of image! The southern hemisphere debate the big issues, share their own experiences, discuss real-world solutions, provide... Kilomètres de haut can unsubscribe at any time and we 'll never share details. 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