Despite its location, the European Space Agency … 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 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. Mars’ massive cloud is back. The information you enter will appear in your e-mail message and is not retained by Phys.org in any form. 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. 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. Apart from any fair dealing for the purpose of private study or research, no The image reveals the black hole at the centre of Messier 87, a massive galaxy in the nearby Virgo galaxy cluster. 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. Images are provided of a plume-shaped white cloud located on the Western flank of Arsia Mons during apparitions going back to 2005.Images of the plume-shaped white cloud … The plume was spotted earlier this month above Arsia Mons in the southern hemisphere. "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. It showed up in satellite images for about 90 days. There's a long, curious cloud lingering over Mars' massive Arsia Mons volcano. 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 Arsia Mons Elongated Cloud, or AMEC, as it’s called, can reach about 1,110 miles (1,800 km) in length. Your opinions are important to us. "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 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. ARSÍA MONS LONG CLOUD! This is not the first time the cloud has made an appearance. 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. 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. Despite its location, the European Space Agency says it's not linked to volcanic activity. 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. Articles récents. A plume shaped white cloud was imaged a number of times from Sep. 13, 2018 through Nov. 12, 2018 by the Mars Express. Thursday 30 July 2020 13:19. The cloud is made up of water ice, but does not seem to be from volcanic activity. • Air temperature strongly perturbs the presence of low altitude thick clouds. 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. Independent Premium Comments can be posted by members of our membership scheme, Independent Premium. A mysterious elongated cloud that stretches some 1,100 miles over Mars has returned - it was last seen in 2018. It appeared first thing in the morning, built across the landscape, then drifted away from the volcano and disappeared by early afternoon. Here’s the cloud, extending west of the Arsia Mons volcano on Mars, seen in a Mars Express image taken October 10, 2018. Picture: ESA. • Favoring atmospheric conditions exist over Arsia Mons for high altitude clouds. 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. A mysteriously long, thin cloud has again appeared over the 20-km-high Arsia Mons volcano on Mars. The cloud made an appearance over the volcano before, in 2018. Want an ad-free experience?Subscribe to Independent Premium. The gaseous body was seen floating over the 20-kilometer high Arsia Mons volcano on the Red Planet, in images captured by the ESA. Dynamics of the extremely elongated cloud on Mars Arsia Mons volcano. ISRO / ISSDC / Justin Cowart. Arsia Mons and cloud, Mars Mars Orbiter Mission took this photo on January 4, 2015, from an altitude of 10,773 kilometers. Arsia Mons Elongated Cloud ili AMEC (hrv. 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