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. There's a long, curious cloud lingering over Mars' massive Arsia Mons volcano. There's a long, curious cloud lingering over Mars' massive Arsia Mons volcano. A mysterious long, thin cloud has made another appearance over a volcano in Mars. However, we don’t know yet if the clouds are always quite this impressive”. Quizz – Move to Cloud. A year at the Red Planet consists of 668 sols, approximately 687 days, so the seasons last for twice as long. Articles récents. The most insightful comments on all subjects will be published daily in dedicated articles. Its most recent appearance was in 2018 — the last solstice. Travail à distance, comment se protéger du risque cyber ? So, for how long has it been disappearing and reappearing? ISRO / ISSDC / Justin Cowart This cloud has a … These are ice rich clouds over the summit of Arsia Mons. Apart from any fair dealing for the purpose of private study or research, no Izduženi oblak uz Arsia Mons) je ponavljani vremenski fenomen koji se formira svake marsovske godine oko južnog solsticija nad Arsia Monsom, a ponavlja se 80 dana ili čak i više, nakon brzog dnevnog ciklusa. Medical research advances and health news, The latest engineering, electronics and technology advances, The most comprehensive sci-tech news coverage on the web. 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. Izduženi oblak uz Arsia Mons) je ponavljani vremenski fenomen koji se formira svake marsovske godine oko južnog solsticija nad Arsia Monsom, a ponavlja se 80 dana ili čak i više, nakon brzog dnevnog ciklusa. Free for commercial use, no attribution required. Arsia Mons is a volcano nearly large enough to cover the state of New Mexico. Mars’ massive cloud is back. par Charlotte PAUCHET. 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. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. 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. “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. A repeated weather phenomenon occurs each year near the start of southern winter over Arsia Mons. Click here for an annotated version of this image, which is via ESA. "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. 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. The cloud made an appearance over the volcano before, in 2018. 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. 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. Here’s the cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. I was looking at the image again today and realised that this is probably the return of the Arsia Mons sunrise cloud shadow. We study the daily cycle of this cloud, showing how the morphology and other parameters of the cloud evolved with local time. Cloud near Arsia Mons is outlined in red and indicated by a red arrow. 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. The spiral dust cloud over Arsia Mons can tower 15 to 30 kilometers (9 to 19 miles) above the volcano. This site uses cookies to assist with navigation, analyse your use of our services, and provide content from third parties. Red arrow indicates Arsia Mons. This global map of Mars, based on data from NASA Mars Odyssey, shows estimates for amounts of high-energy-particle cosmic radiation reaching the surface, a serious health concern for any future human exploration of the planet. Chez ARSIA MONS, nous sommes les Architectes du changement. Neposredno prije nego što počne južna zima, sunčevo svjetlo zagrijava zrak na padinama vulkana. More evidence against the cloud being orographic is captured by Clyde Foster's high resolution color image of Arsia Mons and of the cloud and its long shadow in the early morning at Ls 260° that is very late Spring in the Southern Hemisphere. It allows our most engaged readers to debate the big issues, share their own experiences, discuss real-world solutions, and more. 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 information you enter will appear in your e-mail message and is not retained by Phys.org in any form. 13 novembre 2020. ISRO / ISSDC / Justin Cowart. 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. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. The cloud is made up of water ice, but does not seem to be from volcanic activity. The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. The rounded cloud of ARSIA MONS (AMEC) is an orofrafic cloud detected above the dormant volcano ARSIA MONS of 20 km altitude on Mars. It would be a dense cloud of CO2 ice crystals therefore would cast a … Your opinions are important to us. Its size changes throughout the Martian day — in the morning it grows longer, parallel with the equator. I was looking at the image again today and realised that this is probably the return of the Arsia Mons sunrise cloud shadow. 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. The other volcanoes in the Tharsis Montes region are also visible, including Olympus Mons, visible in the image on the right, almost covered in shadow. Want an ad-free experience?Subscribe to Independent Premium. Imaging transient … Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. 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. Thank you for taking your time to send in your valued opinion to Science X editors. 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. Avec le développement du télétravail, de nouveaux risques menacent les entreprises. A mysteriously long, thin cloud has again appeared over the 20-km-high Arsia Mons volcano on Mars. Read our full mailing list consent terms here. See more THEMIS Images of the Day by geological subject. • High altitude thin clouds are associated with the elevated dustiness. NASA/JPL/MSSS Dated: 16.02.2002. In the early mornings during this period, this fleeting cloud grows for approximately three hours, quickly disappearing again just a few hours later. Night-time MCS observations suggest an appearance of thick low altitude clouds within 15 – 32 km height during L S = 35 – 150° and thin high-altitude clouds within 30 – 50 km height during L S = 225 – 315°. Die Wolke besitzt eine schwanzartige Struktur, besteht aus Wasser und Eis und kann bis zu 1.800 Kilometer lang werden. 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 - … The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. - 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. Right: Still from MARCI movie for 2 July 2009. Here’s the cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. During this period, in the early morning, the cloud grows for three hours before quickly disappearing again. Click here to sign in with The long cloud streaming out from Arsia Mons. Want to bookmark your favourite articles and stories to read or reference later? July 2020; Conference: XIV Reunión Científica de la Sociedad Española de Astronomía • Favoring atmospheric conditions exist over Arsia Mons for high altitude clouds. “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 white and bluish areas in the images are thin clouds of water ice. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. The stream forms as the airflow is influenced by the side of the volcano that does not face the wind, baffling scientists. The volcano itself has not been active for 50 million years, so it is incredibly unlikely that it is the cause of the cloud. The present study used the observations from Mars Color Camera (MCC) onboard Mars Orbiter Mission, from the two instruments onboard Mars Reconnaissanc… The plume here rises vertically and then flows Westward away from Arsia. Imaging transient clouds allows for study of the atmosphere of Mars. 15 novembre 2020. In the 2005 case, more water ice was present than in the previous years at the time the pictures were obtained. Arsia Mons stands 5.6 miles above the surrounding area in Tharsis with a fairly low to high rise just southeast of the volcano that may cause some conditions where a long extended orographic cloud would exist. This document is subject to copyright. Die Arsia Mons Elongated Cloud (AMEC) ist eine Lee-Wolke, die über dem mehr als 20 Kilometer hohen ruhenden Vulkan Arsia Mons auf dem Mars entdeckt wurde. Get weekly and/or daily updates delivered to your inbox. The existing Open Comments threads will continue to exist for those who do not subscribe to Independent Premium. Stay tuned as scientists continue to investigate, and we reveal more mysteries from Mars. Arsia Mons and cloud, Mars Mars Orbiter Mission took this photo on January 4, 2015, from an altitude of 10,773 kilometers. 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. Arsia Mons sunrise cloud shadow returns? Nous concevons et vous aidons à réaliser les projets innovants qui changeront votre futur. Just before southern winter begins, sunlight warms the air on the slopes of the volcano. Arsia is the southernmost of the three Tharsis Montes. 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. It showed up in satellite images for about 90 days. The autumn of 2018 saw a particularly pronounced version of this orographic cloud, as the planet-wide dust storm finally subsided. Arsia Mons sunrise cloud shadow returns? 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. 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. What topics in a Physics degree don't appear in an Astrophysics degree? Your feedback will go directly to Science X editors. Arsia Mons stands 5.6 miles above the surrounding area in Tharsis with a fairly low to high rise just southeast of the volcano that may cause some conditions where a long extended orographic cloud would exist. A plume shaped white cloud was imaged a number of times from Sep. 13, 2018 through Nov. 12, 2018 by the Mars Express. Every year during Mars’ summer solstice, a cloud of water ice forms on the leeward side of Arsia Mons, one of Mars’ largest extinct volcanoes. However, we don't know yet if the clouds are always quite this impressive". The Arsia Mons cloud has been observed several times over the years. Neither your address nor the recipient's address will be used for any other purpose. It is made up of water ice, but despite appearances it … A mysterious elongated cloud that stretches some 1,100 miles over Mars has returned - it was last seen in 2018. Water ice cloud patch and trail observed over Olympus and Arsia Mons. The cloud is dubbed the “Arsia Mons Elongated Cloud,” or AMEC, and its reappearance this year did not entirely surprise scientists. 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. Download Image of Arsia Mons Spiral Cloud. Image via ESA . Revue de presse – 15/11/2020. A martian day, or sol, is slightly longer than an Earth day at 24 hours, 39 minutes and 35 seconds long. En effet, un mystérieux nuage martien a réapparu au-dessus du volcan, et nous offre une vue pour le moins spectaculaire. The image reveals the black hole at the centre of Messier 87, a massive galaxy in the nearby Virgo galaxy cluster. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. You can also choose to be emailed when someone replies to your comment. The cloud expands every morning from the western slope of the volcano, at a westward velocity of around … Mysterious cloud forms over Arsia Mons volcano on Mars. 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. Click here for an annotated version of this image, which is … The spiral dust cloud over Arsia Mons can tower 15 to 30 kilometers (9 to 19 miles) above the volcano. Figure 2 . 17 novembre 2020. You can unsubscribe at any time and we'll never share your details to third parties. Arsia is the southernmost of the three Tharsis Montes. The cloud has a tail-like structure, consists of water and ice and can gain over 1,800 kilometers (1118 miles) in length. Regions of space such as this are where new stars are born from a mixture of elements and cosmic dust, The first ever image of a black hole, captured by the Event Horizon telescope, as part of a global collaboration involving Nasa, and released on 10 April 2019. Click here for an annotated version of this image. "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 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 mysterious elongated cloud that stretches some 1,100 miles over Mars has returned - it was last seen in 2018. A curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. This black hole resides about 54 million light-years from Earth, Pluto, as pictured by Nasa's New Horizons spacecraft as it flew over the dwarf planet for the first time ever in July 2015, A coronal mass ejection as seen by the Chandra Observatory in 2019. The cloud has a tail-like structure, consists of water and ice and can gain over 1,800 kilometers (1118 miles) in length. Adam Smith @adamndsmith. The cloud has been officially named the Arsia Mons Elongated Cloud or AMEC. A Martian year is approximately 687 Earth days. 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. You can find our Community Guidelines in full here. The cloud is dubbed the “Arsia Mons Elongated Cloud,” or AMEC, and its reappearance this year did not entirely surprise scientists. At a Glance. By using our site, you acknowledge that you have read and understand our Privacy Policy The gaseous body was seen floating over the 20-kilometer high Arsia Mons volcano on the Red Planet, in images captured by the ESA. L’imposant volcan Arsia Mons sur Mars atteint plus de 20 kilomètres de haut. Arsia Mons Elongated Cloud ili AMEC (hrv. Image via ESA . Quizz – Marketing de la DSI. ARSÍA MONS LONG CLOUD! This is not the first time the cloud has made an appearance. 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. It appeared first thing in the morning, built across the landscape, then drifted away from the volcano and disappeared by early afternoon. The southern solstice is when the Sun is in the southernmost area of the sky. 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 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 curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. It showed up in satellite images for about 90 days. Despite its location, the European Space Agency says it's not linked to volcanic activity. That means we can catch it!". Tapez votre commentaire ici. The cloud can grow to be up to 1800 km (1120 miles) long. Il... par La Revue de Presse. Picture: ESA. “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. 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. Your email address is used only to let the recipient know who sent the email. • Air temperature strongly perturbs the presence of low altitude thick clouds. At a Glance. Mysterious Martian cloud reappears above Arsia Mons volcano. Despite its location, the European Space Agency … We study the daily cycle of this cloud, showing how the morphology and other parameters of the cloud evolved with local time. Bien que le volcan Arsia Mons de Mars ne soit pas en éruption, il s’offre tout de même en spectacle actuellement. 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. 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. See Figure 2. "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," says Eleni Ravanis, a Young Graduate Trainee for the Mars Express mission who works specifically for the VMC instrument. “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. Most spacecraft orbiting Mars only make observations in the afternoon, but the image of this cloud can be captured by the Mars Express – launched in 2003 – because it is in a high elliptical orbit. A mysteriously long, thin cloud has again appeared over the 20-km high Arsia Mons volcano on Mars. . As a result of this rather strange encounter it became known as the Arsia Mons Elongated Cloud and it was listed off as unexplained and unknown by the team of experts inspecting it yet again. 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