What topics in a Physics degree don't appear in an Astrophysics degree? 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. 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. A mysterious long, thin cloud has made another appearance over a volcano in Mars. Why does it only form in the early morning? "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. The cloud has been officially named the Arsia Mons Elongated Cloud or AMEC. The cloud has a tail-like structure, consists of water and ice and can gain over 1,800 kilometers (1118 miles) in length. 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. Please be respectful when making a comment and adhere to our Community Guidelines. Die Wolke besitzt eine schwanzartige Struktur, besteht aus Wasser und Eis und kann bis zu 1.800 Kilometer lang werden. 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. Your feedback will go directly to Science X editors. 15 novembre 2020. Quizz – Marketing de la DSI. 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. In the early mornings during this period, this fleeting cloud grows for approximately three hours, quickly disappearing again just a few hours later. Here’s the cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. Thursday 30 July 2020 13:19. “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. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. We study the daily cycle of this cloud, showing how the morphology and other parameters of the cloud evolved with local time. July 2020; Conference: XIV Reunión Científica de la Sociedad Española de Astronomía There's a long, curious cloud lingering over Mars' massive Arsia Mons volcano. On this particular day (the first day of Spring), the MOC wide angle cameras documented an unusual spiral-shaped cloud within the 110 km (68 mi) diameter caldera--the summit crater--of the giant volcano. 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. Adam Smith @adamndsmith. Imaging transient … A Martian year is approximately 687 Earth days. Click here for an annotated version of this image. In the 2005 case, more water ice was present than in the previous years at the time the pictures were obtained. 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 long cloud streaming out from Arsia Mons. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. Stay tuned as scientists continue to investigate, and we reveal more mysteries from Mars. A martian day, or sol, is slightly longer than an Earth day at 24 hours, 39 minutes and 35 seconds long. Mysterious cloud forms over Arsia Mons volcano on Mars. The information you enter will appear in your e-mail message and is not retained by Phys.org in any form. Click here to sign in with 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. 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. Imaging transient clouds allows for study of the atmosphere of Mars. Arsia Mons and cloud, Mars Mars Orbiter Mission took this photo on January 4, 2015, from an altitude of 10,773 kilometers. NASA/JPL/MSSS Dated: 16.02.2002. Independent Premium Comments can be posted by members of our membership scheme, Independent Premium. Its most recent appearance was in 2018 — the last solstice. That means we can catch it!". The image reveals the black hole at the centre of Messier 87, a massive galaxy in the nearby Virgo galaxy cluster. The craft’s high orbit, “coupled with the wide field of view of the VMC instrument [this] lets us take pictures covering a wide area of the planet in the early morning”, Ravanis continued. The Mars Express science team have now named the cloud the Arsia Mons Elongated Cloud, AMEC. 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. It appeared first thing in the morning, built across the landscape, then drifted away from the volcano and disappeared by early afternoon. Click here for an annotated version of this image. It forms each morning, then disappears the same day, only to reappear the next morning. Apart from any fair dealing for the purpose of private study or research, no The presence of some dust undoubtedly emphasised the phenomenon. Are you sure you want to delete this comment? Our journalists will try to respond by joining the threads when they can to create a true meeting of independent Premium. 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 image covers an area about 1100 kilometers wide. 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. Your email address is used only to let the recipient know who sent the email. 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. "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. 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. part may be reproduced without the written permission. Start your Independent Premium subscription today. Neither your address nor the recipient's address will be used for any other purpose. • Air temperature strongly perturbs the presence of low altitude thick clouds. or, by European Space Agency. 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 cloud can grow to be up to 1800 km (1120 miles) long. … Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. You can unsubscribe at any time and we'll never share your details to third parties. 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 is the southernmost of the three Tharsis Montes. ISRO / ISSDC / Justin Cowart. The cloud made an appearance over the volcano before, in 2018. 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. Right: Still from MARCI movie for 2 July 2009. Il... par La Revue de Presse. Picture: ESA. Your opinions are important to us. 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. Click here for an annotated version of this image, which is via ESA. I was looking at the image again today and realised that this is probably the return of the Arsia Mons sunrise cloud shadow. The spiral dust cloud over Arsia Mons can tower 15 to 30 kilometers (9 to 19 miles) above the volcano. 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. The Arsia Mons cloud has been observed several times over the years. A mysteriously long, thin cloud has again appeared over the 20-km-high Arsia Mons volcano on Mars. Are you sure you want to mark this comment as inappropriate? The stream forms as the airflow is influenced by the side of the volcano that does not face the wind, baffling scientists. 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 other volcanoes in the Tharsis Montes region are also visible, including Olympus Mons, visible in the image on the right, almost covered in shadow. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. This site uses cookies to assist with navigation, analyse your use of our services, and provide content from third parties. It allows our most engaged readers to debate the big issues, share their own experiences, discuss real-world solutions, and more. At a Glance. The present study used the observations from Mars Color Camera (MCC) onboard Mars Orbiter Mission, from the two instruments onboard Mars Reconnaissanc… Despite its location, the European Space Agency … Get weekly and/or daily updates delivered to your inbox. Arsia Mons and cloud, Mars Mars Orbiter Mission took this photo on January 4, 2015, from an altitude of 10,773 kilometers. En effet, un mystérieux nuage martien a réapparu au-dessus du volcan, et nous offre une vue pour le moins spectaculaire. 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. Medical research advances and health news, The latest engineering, electronics and technology advances, The most comprehensive sci-tech news coverage on the web. A curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. 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. Mysterious Martian cloud reappears above Arsia Mons volcano. 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. 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. As they study this cloud more, they hope to discover why it appears and reappears only in the morning hours. So, for how long has it been disappearing and reappearing? However, we don't know yet if the clouds are always quite this impressive". 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. Nous concevons et vous aidons à réaliser les projets innovants qui changeront votre futur. 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. It would be a dense cloud of CO2 ice crystals therefore would cast a nice shadow. The white and bluish areas in the images are thin clouds of water ice. The cloud is dubbed the “Arsia Mons Elongated Cloud,” or AMEC, and its reappearance this year did not entirely surprise scientists. 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°. Just before southern winter begins, sunlight warms the air on the slopes of the volcano. You can find our Community Guidelines in full here. • Favoring atmospheric conditions exist over Arsia Mons for high altitude clouds. Revue de presse – 15/11/2020. A mysterious long, thin cloud has made another appearance over a volcano in Mars. Neposredno prije nego što počne južna zima, sunčevo svjetlo zagrijava zrak na padinama vulkana. This document is subject to copyright. Cloud near Arsia Mons is outlined in red and indicated by a red arrow. The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. A year at the Red Planet consists of 668 sols, approximately 687 days, so the seasons last for twice as long. Please continue to respect all commenters and create constructive debates. Instead, the curious stream forms as airflow is influenced by the volcano's 'leeward' slope − the side that does not face the wind. 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. • High altitude thin clouds are associated with the elevated dustiness. 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 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. "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. This work is licensed under a Creative Commons Attribution 3.0 Unported License. “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. Arsia Mons Elongated Cloud ili AMEC (hrv. It would be a dense cloud of CO2 ice crystals therefore would cast a … The spiral dust cloud over Arsia Mons can tower 15 to 30 kilometers (9 to 19 miles) above the volcano. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. Mars’ massive cloud is back. The cloud is made up of water ice, but does not seem to be from volcanic activity. "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. Water ice cloud patch and trail observed over Olympus and Arsia Mons. We study the daily cycle of this cloud, showing how the morphology and other parameters of the cloud evolved with local time. It is made up of water ice, but despite appearances it … 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. 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. Want an ad-free experience?Subscribe to Independent Premium. 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. 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. We do not guarantee individual replies due to extremely high volume of correspondence. 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 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. On the leeward slope, water ice condenses, forming a cloud which can extend westward for more than 1000 km. You can also choose to be emailed when someone replies to your comment. Here’s the cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. The most insightful comments on all subjects will be published daily in dedicated articles. It appeared first thing in the morning, built across the landscape, then drifted away from the volcano and disappeared by early afternoon. It showed up in satellite images for about 90 days. 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. 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. A curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. Arsia Mons sunrise cloud shadow returns? During this period, in the early morning, the cloud grows for three hours before quickly disappearing again. 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. Image via ESA . Click here for an annotated version of this image, which is … Free for commercial use, no attribution required. You can be assured our editors closely monitor every feedback sent and will take appropriate actions. A mysterious elongated cloud that stretches some 1,100 miles over Mars has returned - it was last seen in 2018. 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. 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. 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. The rounded cloud of ARSIA MONS (AMEC) is an orofrafic cloud detected above the dormant volcano ARSIA MONS of 20 km altitude on Mars. Near the start of southern winter over Arsia Mons disappears the same day or. Bis zu 1.800 Kilometer lang werden 1,800 kilometers ( 9 to 19 miles ) above the volcano due extremely! Any other purpose engaged readers to debate the big issues, share their own experiences, discuss solutions. Sols, approximately 687 days, so the seasons last for twice as long: ESA/NASA/JPL/Malin Space Systems/Mike Malaska the. 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