PHYS1160 APOD Plan (1)

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University of New South Wales *

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1160

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Astronomy

Date

Oct 30, 2023

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pdf

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PHYS1160 APOD Plan. Image Name: Dry Ice Sled Streaks on Mars. Image Credit : HiRISE, MRO, LPL (U. Arizona), NASA. Image from [Bonnell, J. and Nemiroff, R. (2013)]. Out of the 3 photos that I have been assigned too, I have chosen a photo about the dry ice sled streaks on Mars. Plan: ● The style I might construct this research on is a scientific report or article. ● My object of focus is the existence and phenomenon of dry ice on Mars.

Structural Plan: Paragraph 1: Introduction (approx. 200-300 words). - A general introduction to Mars. - Production of grooves on the surface of Mars. - Other planets that can or potentially have the same (maybe). Paragraph 2: Indepth Of Mars (approx. 400-800 words). - Recap to introduction of Mars: - Its orbit around the Sun in our Solar System. - Its axis. - Seasons (similar to Earth). - Its atmosphere. - Mars seasonal polar caps. - The North and South. - Climates at each cap. Paragraph 3: The Marks on Mars by Dry Ice (approx. 1000-1500 words). - What are the marks. - A general introduction to dry ice and its formation. - How does dry ice cause this. - How and where are these marks seen on Mars. - Types of streaks and markings. - Its general shapes - When does it occur. - How does it occur. - Any scientific instruments to observe this phenomenon. - Examples. Paragraph 4: Future (approx. 300-500 words). - The importance of this phenomenon for scientific future plans. - Is it similar to Earth? - Can it be inhabitable? - AtmosphereOzone formation? - How this contribute to future potential civilisation on Mars. Conclusion: Summary (approx. >100 words).

Image from (NASA JPL, 2013). Image from (NASA JPL, 2013).

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Draft Introduction: In our Local Galaxy lies a Solar System consisting of a Sun with 8 orbiting planets. We live on the 3rd planet from the Sun called Earth and it is the only inhabitable planet in our Solar System. However, recent discoveries show that Mars, our neighboring planet and the 4th planet from the Sun, shows habitable traits for future civilisation. NASA, through the use of scientific telescopic instruments, Mars can observe the behavioural, climate and planetary changes. In 2006, an image was taken by NASA through the HiRISE (High Resolution Imaging Science Experiment) camera (which was on board the current orbiting NASA's Mars Reconnaissance Orbiter) and it showed a strange groove phenomenon on the surface of Mars. It was assumed to be water at first, however unlike water, the grooves does not show areas of dried debris. Within the research department, a hypothesis was formed stating that the grooves were formed by breakage of dried ice. [Bonnell, J. and Nemiroff, R. (2013)]. In 2013, it was concluded that these grooves are a type of linear gullies and is produced by broken chunks of frozen carbon dioxide (dry ice). [NASA Photojournal (2013)]. There were assumptions that other planets or moons may have this phenomenon as well, however, no other planets or moons contain inhabitable features and frozen carbon dioxide (as other bodies contain other stable gases in frozen state and are in crystal forms) [WeatherGuys Editor (2018)].

Reference: - NASA. (2013). Marks on martian dunes may be tracks of dry-ice sleds. NASA JPL. Available at: https://www.jpl.nasa.gov/news/marks-on-martian-dunes-may-be-tracks-of-dry-ice-sleds (Accessed: 11 October 2023). - NASA. (2022). NASA explores a Winter Wonderland on Mars. NASA JPL. Available at: https://www.jpl.nasa.gov/news/nasa-explores-a-winter-wonderland-on-mars (Accessed: 12 October 2023). - Whitwam, R. (2022). NASA takes the sting out of cold weather on Earth by detailing winter on Mars. ExtremeTech. Available at: https://www.extremetech.com/extreme/341808-nasa-takes-the-sting-out-of-cold-weather- on-earth-by-detailing-winter-on-mars (Accessed: 12 October 2023). - NASA. (2021). Mars facts. NASA. Available at: https://mars.nasa.gov/all-about-mars/facts/ (Accessed: 12 October 2023). - Cool Cosmos. (n.d.). Ask an astronomer. Cool Cosmos. Available at: https://coolcosmos.ipac.caltech.edu/ask/86-How-did-Mars-and-its-moons-get-their-names - (Accessed: 13 October 2023). - Bonnell, J. and Nemiroff, R. (2013) APOD: Dry ice sled streaks on Mars, NASA. Available at: https://apod.nasa.gov/apod/ap130617.html (Accessed: 13 October 2023). - NASA Photojournal (2013). PIA17260: Linear Gullies Inside Russell Crater, Mars, NASA JPL. Available at: https://photojournal.jpl.nasa.gov/catalog/PIA17260 (Accessed: 13 October 2023). - WeatherGuys Editor (2018) Is there snow and ice on other planets?, The Weather Guys. Available at: https://wxguys.ssec.wisc.edu/2018/01/16/snow-and-ice-other-planets/ (Accessed: 13 October 2023).