Extremely elongated cloud returns over Arsia Mons volcano, Mars. Its long bright trail has become a familiar feature over the peak known as Arsia Mons, to the southeast of the more famous Olympus Mons. It forms each morning, then disappears the same day, only to reappear the next morning. 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. Nous concevons et vous aidons à réaliser les projets innovants qui changeront votre futur. So, how long has it been disappearing and reappearing? Le jour martien, appelé « … A Nuvem Alongada de Arsia Mons (AMEC, na sigla em inglês) é uma nuvem orográfica detectada acima do vulcão dormente Arsia Mons de 20 quilômetros de altitude, em Marte. 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 cloud can reach up to 1,100 miles (1,800 km) in length. The cloud has been officially named the Arsia Mons Elongated Cloud or AMEC. In the images, the cloud appears as a white plume hovering over the Arsia Mons volcano on Mars, near the Martian equator, which stretches over 20 kilometers high. The elongated cloud hovering near Arsia Mons this year was also observed with the visible and near-infrared mapping spectrometer, OMEGA, and the High Resolution Stereo Camera (HRSC) on Mars Express, providing scientists with a variety of different data to study this phenomenon. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. A mysteriously long, slim cloud has once again appeared about the 20-km-substantial Arsia Mons volcano on Mars. The massive extinct volcano that is home to the cloud is Arsia Mons , a 20 km high (12.4 miles) landmark on Mars’ surface. “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. Made of water ice, the elongated cloud sits 12.4 miles above the volcano Arsia Mons and stretches some 1,110 miles in length. Named the Arsia Mons Elongated Cloud (AMEC), the cloud can reach up to 1,800 km (1,118 miles) in length. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. Meet the Arsia Mons Elongated Cloud, or AMEC. Image via ESA. The cloud expands every morning from the western slope of the volcano, at a westward velocity of around 150m/s, and an … As per ESA, the tail-like cloud made of water ice can be as long as 1,800 km. A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity. A recurrent feature, the cloud is made up of water and ice and can stretch for over 1,100 miles (1,800 km). The Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. The elongated cloud formation can reach 1,800 kilometers (1,120 miles) in length, and hovers above the 20-kilometer-high (12.4-mile) Arsia Mons volcano, close to the planet's equator. 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. Instead, the curious stream forms as airflow, influenced by the volcano’s leeward slope (the side that does not face the wind). The elongated "water ice cloud" seen lingering over Arsia Mons on Sept. 13, 2018. A freaky elongated cloud has been appearing over the same volcano on Mars that planetary scientists simply had to give it a name. What is the Arsia Mons Elongated Cloud? Mars Express first noticed and photographed the cloud in September 2018. A mysteriously long, thin cloud has again appeared over the Arsia Mons volcano on Mars. 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. July 2020; Conference: XIV Reunión Científica de la Sociedad Española de Astronomía The elongated cloud formation can reach 1,800 kilometers (1,120 miles) in length, and hovers above the 20-kilometer-high (12.4-mile) Arsia Mons volcano, close to the planet's equator. EarthSky’s yearly crowd-funding campaign is in progress. 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. Your most recent photos of Jupiter and Saturn. The stream forms as the airflow is influenced by the side of the volcano that does not face the wind, baffling scientists. La pression atmosphérique a été mesurée … Sa taille change tout au long de la journée martienne - le matin, il s'allonge, parallèlement à l'équateur. A similar cloud was found i n the VMC archive in different M artian Y ears (MY) , around the southern solstice (Ls 270º), a season known for a general lack of clouds … A mysterious long, thin cloud has made another appearance over a volcano in Mars. 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. However, we don’t know yet if the clouds are always quite this impressive. A martian day, or sol, is slightly longer than an Earth day at 24 hours, 39 minutes and 35 seconds long. Arsia Mons Elongated Cloud ili AMEC (hrv. 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. Mysterious cloud forms over Arsia Mons volcano on Mars. That means we can catch it!”. What is the Arsia Mons Elongated Cloud? Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano (EGU 2020) Picture: ESA. In a July 29 statement, ESA said the cloud has appeared again, illustrated by the images above, acquired by the Visual Monitoring Camera (VMC) on Mars Express on July 17 and 19, 2020. DetailsRelated. A year at the Red Planet consists of 668 sols, approximately 687 days, so the seasons last for twice as long. 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. Its long bright trail has become a familiar feature over the peak known as Arsia Mons, to the southeast of … You can find more pictures of AMEC, as well as other ‘alien’ features of the Red Planet, on the VMC Flickr page. And the Arsia Mons Elongated Cloud doesn't just come, stick around for a while, then dissipate. A curious elongated cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity. Picture: ESA. “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. 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. Researchers have named it the Arsia Mons Elongated Cloud (AMEC). The cloud has a tail-like structure, consists of water and ice and can gain over 1,800 kilometers (1118 miles) in length. A mysteriously long, thin cloud has again appeared over the Arsia Mons 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 per ESA, the tail-like cloud made of water ice can be as long as 1,800 km. View larger. The Mars Express science team has named the cloud the Arsia Mons Elongated Cloud, AMEC. Stay tuned as scientists continue to investigate, and we reveal more mysteries from 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. Mysterious cloud forms over Arsia Mons volcano on Mars. Arsia Mons Elongated Cloud Return of the extremely elongated cloud ... on Mars A mysteriously long, thin cloud has again appeared over the 20-km high Arsia Mons volcano on Mars. “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 (Spain) and lead author of the ongoing study. A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a … That means we can catch it! Scientists have spotted the mysterious elongated plume above Mars’ Arsia Mons volcano reappear and say it is not created by volcanic activity on Mars. View larger. 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. 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. She and her husband live in Tennessee and have two grown sons. He said in a statement: We have been investigating this intriguing phenomenon and were expecting to see such a cloud form around now. In the early mornings during this period, this fleeting cloud grows for approximately three hours, quickly disappearing again just a few hours later. Arsia Mons est un volcan bouclier situé sur la planète Mars par 8,4° S et 238,9° E [archive] dans le quadrangle de Phoenicis Lacus. Arsia Mons Elongated Cloud Return of the extremely elongated cloud ... on Mars A mysteriously long, thin cloud has again appeared over the 20-km high Arsia Mons volcano on Mars. 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