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Looking at the eastern exit into Jezero Crater of the Neretva Vallis channel, through alluvial deposits.
IANAG. Map follows.
Heavily processed MCZ_RIGHT to bring out faint background details
FL: 110mm
looking ENE (63°) from RMC 51.0410
Sol 1099, LMST: 12:50:37
Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01099/ids/edr/browse/zcam/ZR0_1099_0764504884_113EBY_N0510410ZCAM09117_1100LMJ01.png
Credit: #NASA/JPL-Caltech/ASU/65dBnoise
Jupiter on May 16th as seen by NASA’s Juno spacecraft as it made its approach over the North Pole for Perijove 51.
NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill
April 24, 1872, Mount Vesuvius in Italy erupts - likely one of the first volcanic eruptions to be photographed 🌋📷
In the digital era of instant communication, breaking news of volcanic eruptions usually arrive image-first. This year, spectacular eruptions of Calbuco (Chile), Fuego (Guatemala) and Etna (Italy) have all made it into the end-of-year ‘top tens‘, in glorious multicolour detail. But when was the first photograph taken that captured one instant during a volcanic eruption? And which was the first such photograph to make it into print? One example may be the April 1872 eruption of Vesuvius, Italy. This short and destructive eruption was one of the most violent paroxysms at Vesuvius during the 19th century. The eruption was quickly documented by Luigi Palmieri – Director of the Vesuvius Observatory from 1852 – 1896. His report of the eruption contains a dramatic line drawing of Vesuvius in eruption on 26th April, which the caption implied was a sketch based on a photograph taken from Naples. Vesuvius in eruption, April 26, 1872. Original caption ‘from a photograph taken in the neighbourhood of Naples”. (Palmieri and Mallet, 1873). Some years later, John Wesley Judd (1881) noted that ‘on the occasion of this outburst [the 1872 eruption], the aid of instantaneous photography was first made available for obtaining a permanent record of the appearances displayed at volcanic eruptions‘. Judd published a woodcut of a photograph as Figure 5, with no further details relating to its origin; but the image is clearly of the same event and from a fairly similar location to that depicted by Palmieri. Vesuvius, April 1872. Woodcut image, originally published as Fig. 5 in Judd (1881). A very similar image – most likely a photograph from the same sequence seems to have later become a ‘stock’ volcano photograph; appearing as the frontispiece to Edward Hull‘s ‘Volcanoes past and present’ (1892), as Plate 1 in Bonney‘s ‘Volcanoes’ (1899), and even later as a repainted, colour plate in a popular science magazine (Thomson, 1921). Eruption of Vesuvius, 1872-3. Frontispiece in Hull (1892). Original caption ‘From a photograph by Negrettti and Zambra’. Vesuvius 1872 from ‘The outline of science’, Thomson (1921). Original caption ‘from a photograph by Negretti and Zambra’. Both Hull and Thomson credited the photograph to ‘Negretti and Zambra‘, a company specialising in optical, photographic and meteorological instruments, and photographic materials – including lantern slides. A plausible candidate for the original photographer could be Giorgio Sommer, who ran a studio in Naples. Some of his collections of photographs of Vesuvius from this eruption can be found in archives including Luminous Lint and elsewhere. As an indication of the wider circulation of these images at the time, another similar image can be found as a glass plate in the archives of Tempest Anderson; a British opthalmologist and inveterate traveller and photographer of volcanoes in the late 19th Century. Anderson’s scientific volcano photography included documenting the aftermath of the devastating eruptions of the Soufriere, St Vincent, in 1902, some images of which were published in his 1903 illustrated book ‘Volcanic Studies’. But are these action shots the first ‘instantaneous’ images of an explosive eruption? A quick search reveals a few albumen prints of steaming volcanoes from the latter parts of the 1860’s (including Etna in 1865, by Sommer; Nea Kameni, Santorini, Greece in 1866; and an image of Kilauea that perhaps dates from 1865). There are also other images of the April 1872 eruption, although taken from a rather different and less revealing location. So perhaps Judd was right – or do any readers have any other suggestions? Cited references and further reading. Anderson, T (1903) Volcanic Studies. John Murray, London. Bonney, TG (1899) Volcanoes: their structure and significance. John Murray, London. Hull, E (1892) Volcanoes: past and present. Walter Scott, London. Judd, JW (1881) Volcanoes: what they are and what they teach. Kegan Paul, London. Palmieri, L (1873) The eruption of Vesuvius in 1872. With notes, and an introductory sketch .. by R. Mallet. Asher and Co., London. Thomson, JA (1921) The outline of science, George Newnes Ltd., London. The eruptive history of Vesuvius is documented in Scandone et al., 2008, and listed in the Smithsonian Institution Global Volcanism Programme pages. About this blog. I am a volcanologist based in Oxford, UK, with an interest in the stories of past eruptions. My blogs tend to focus on volcanoes – contemporary, recent or ancient. There will be quite a lot of ‘historical volcanology’ in my posts over the next few months, as I am curating an exhibition on volcanoes with Oxford’s Bodleian Libraries, which will open in Spring 2017. I am delighted to have joined EGU blogs, and hope that my posts may find some interested readers!
🚨 Cool opportunity for a planetary scientist 🚨
AGU is looking for a new Editor-in-Chief of JGR-Planets
Being EiC of JGR-Planets is a great opportunity that I really enjoyed. If you have any interest please apply or reach out to a current (or former) editor to learn more!
See details at https://t.co/fVFC53a4CY
The formal ad is here: https://t.co/WNFQqnOiZW
#AGU #jgrplanets #planetaryscience #geophysics #academicpublishing #moon #mars #mercury #venus #giantplanets #meteorites #asteroids
The Mercury Exploration Assessment Group (MExAG) has 5 openings on its Steering Committee.
Roles available include Vice-Chair, Geology Discipline Member, Magnetosphere Discipline Member, Early Career Member, and International Early Career Member (new!).
Details and application are available here: https://docs.google.com/forms/d/e/1FAIpQLScI60W2YP_bDygQQhfzMfcK6Lyu0Zxc6kdovHGaUMBguEuKUA/viewform
Applications due by May 19, 2023
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65dBnoise
USGS Volcanoes (bot)
Kevin M. Gill
History_of_Geology