Sunday, August 7, 2011

Summer at CREST,IIA

A classical style Architecture with Grey handsome building blocks; The Campus harboring exotic and indigenous Floral types; An island of snakes and jackfruit trees; Silent yet vibrant labs - This is where I spent my summer 2011. It’s dear to me for two reasons – partly because the ambience was very much alluring and partly because I could meet a few interesting people without whom my stay and also my research could not have been as rewarding as they were. I would count them to be a purple patch of my undergraduate life as I got to live my dreams of being at IIA.



Mesmering beauty!

The weather yarely turns from mild sunny afternoons to darkened evening. Congenial research Atmosphere with pleasantly mottled trees adds to the pulchritude of CREST. G2, My room in the ground floor - I would call it a heaven! I was even wondering if someone designed the room with the prior knowledge about my ‘Dream-lab’. Huh! Yeah, I had always yearned to work at a place where I would relish the beauty of gardens as soon as I open the curtains of the room!



Gestures not to scale!

Sonam, Peppu, Mrunalinee and Anusha – my chat buddies at CREST. ‘Impacted and elliptically transformed Spherical Balls’ – That was the Bonda which was made in the canteen!!! This is a sample of our lunch time scientific chats… The prey was Mrunalinee – A dimension problem in our description, finally concluded it saying, the gestures were not to scale!!

Census of our activities

Nothing could really substitute the dinner time chats, mid night star gazing, Open Air theatre dance classes, Cooking at pantry, CRESTFEST 2011 which made our final rocking days of dance performances at IIA auditorium. Another member of our group was my sweet ‘Taffie’ …Poor creature, I have scared it a couple of times by my shrieks.




Clean-Room world

I could still remember that our laughter would have torn the roofs apart when we renamed CREST as ‘Culinary Research and Education for Students and Trainees’  we had another Handsel of visiting the clean rooms of Astrosat’s telescope. Special credits to Raj for his vivid demos….We went crazy when we wore the clean room suits and more animated when we were given the masks and gloves as take home gifts 


Normalization of deviance – My research on 2m telescopic IR data

Venus Image captured through IIA 2m telescope on 3rd December 2010:



Waiting and wondering how much CREST enthralled me, my mind alerts me not to lecture my readers to boredom. So, I’m leaving my research thesis to find a place in my website. For all those intrigued by the Planet Venus and yearning to trace its Cloud Physics, please find my technical Report in my website.

Watch out for Mars, Hellas!

Hellas, Next stop for Water in Mars!
“You bloom quickly, you do what you need to do, and you go dormant” – Ms.Pratt, Bio-Geochemist, Indiana University.
This holds good not only for Martian Microbes but also for transient water locked up inside the Polygonal cracks in Mars. The Martian Water Exploratory program got more moxie when the recent NASA’s images from MRO mission revealed dark shifting streaks in Hellas Impact Basin.


What’s not in Morsels of Hellas!

The discovery points out to flow of liquid brine in Hellas in summer. It was highly surprising when I superficially read the history of this region. SHARAD radar in MRO previously discovered 250m thick water-Ice on upper crater and 300-450m on middle and lower crater in Hellas. Mars Express HRSC images located 3.5-4km massif and Glaciers with viscous material running down from the rim of the crater. Starting from VIKING’s temperature measurements, Hellas has been much enticing due to its low altitude, favorably high temperature (-18C in late afternoon to -46C at nights- from VIKING), and high Atmospheric vapor pressure of over10mb.the below image shows some gullies identified by MGS, Mars Orbital Camera


Pretty Evidences for Perplexing questions:

Question 1: Why the streaks vanish each winter?
Question 2: What darkens the soil?

The dark streaks point to events caused by Liquid water albeit absence of Spectroscopic signatures of pure water. The albedo variations and sharpness of streaks calls for the younger ages of the streaks. The small ridges shown in the image explain the deformed ice. This provides the key for liquid water beneath the Martian Regolith. The deformed sub surface ice may break through the Crust in short lived outbursts enabling the downhill transport of debris. Fluids migrate through these fractures which are caused by rupture of subsurface liquid reservoirs. The below image shows the Marstian glaciers in Hellas captured by the HRSC camera in Mars Express (ESA)



Numerous Martian Gullies detected in the same basin hypothesizes the flow of Underground fluid either pure water/brine/acidic/Alkaline. The dark deposits in the rim of the basin are caused by internal erosion. The Atmospheric pressure of 11mb at the bottom of the basin (subsurface) and temperature above triple point of water beneath the Martian Soil in Hellas reinforce the striking presence of Ground Ice which melts in summer causing the dark streaks. Thus the morphological features in the image presumably suggest carving by Ground water/Ice, perhaps through capillary action rather than flowing brine on the surface of Mars.

P.S: The aforementioned points complement the research evidence submitted by UA team.
This link can make the reading further interesting :http://www.skyandtelescope.com/news/126800063.html

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