"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. The spiral dust cloud over Arsia Mons can tower 15 to 30 kilometers (9 to 19 miles) above the volcano. "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 made an appearance over the volcano before, in 2018, Find your bookmarks in your Independent Premium section, under my profile. “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 would be a dense cloud of CO2 ice crystals therefore would cast a … Click here for an annotated version of this image. 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. Arsia Mons sunrise cloud shadow returns? Arsia Mons sunrise cloud shadow returns? Start your Independent Premium subscription today. A vos côtés, nous accompagnerons vos ambitions de transformation et votre volonté de franchir avec succès les ruptures technologiques, organisationnelles et humaines portées par le numérique. The long cloud streaming out from Arsia Mons. 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. We do not guarantee individual replies due to extremely high volume of correspondence. 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. The Arsia Mons cloud has been observed several times over the years. The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. Just before southern winter begins, sunlight warms the air on the slopes of the volcano. 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. Nous concevons et vous aidons à réaliser les projets innovants qui changeront votre futur. The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. The southern solstice is when the Sun is in the southernmost area of the sky. Thank you for taking your time to send in your valued opinion to Science X editors. Your email address is used only to let the recipient know who sent the email. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. Your feedback will go directly to Science X editors. Cloud near Arsia Mons is outlined in red and indicated by a red arrow. En effet, un mystérieux nuage martien a réapparu au-dessus du volcan, et nous offre une vue pour le moins spectaculaire. 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 is a volcano nearly large enough to cover the state of New Mexico. Arsia Mons and cloud, Mars Mars Orbiter Mission took this photo on January 4, 2015, from an altitude of 10,773 kilometers. 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. Avec le développement du télétravail, de nouveaux risques menacent les entreprises. The most insightful comments on all subjects will be published daily in dedicated articles. Mysterious Martian cloud reappears above Arsia Mons volcano. I was looking at the image again today and realised that this is probably the return of the Arsia Mons sunrise cloud shadow. 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. Click here for an annotated version of this image, which is … The image covers an area about 1100 kilometers wide. Thursday 30 July 2020 13:19. 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. 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°. 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