Author Topic: India's first space mission to Mars  (Read 2907 times)

Raman

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sheemar

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Re: India's first space mission to Mars
« Reply #82 on: August 23, 2014, 03:33:36 PM »
Mangalyaan to reach Mars in 33 days: ISRO
PTI  Chennai, August 23, 2014



India's ambitious Mars Orbiter Mission was just nine million kilometres away from the red planet, Indian Space Research Organisation said on Saturday.



"Mars Orbiter Mission (MOM) is just nine million km away from Mars and 189 million kilometres away from the Earth. 33 more days to MARS," ISRO said in its social networking site.

Early this month, ISRO scientists ruled out a trajectory correction manoeuvre originally planned for August as the spacecraft was on track.

The ambitious Mars mission under a Rs. 450-crore project was launched from Sriharikota in Andhra Pradesh on board the Polar Satellite Launch Vehicle on November 5 last year with an aim to reach the red planet's atmosphere by September 24.

The project is expected to provide the scientific community better opportunities in planetary research.

PRITAM DASS SHARMA

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Re: India's first space mission to Mars
« Reply #83 on: September 22, 2014, 05:02:19 PM »
मंगल के गुरुत्व प्रभाव में पहुंचा मंगलयान



मंगल ग्रह की कक्षा में प्रवेश करने की प्रक्रिया के दौरान भारत का अंतरिक्ष यान-मंगलयान सोमवार को इसके गुरुत्व प्रभाव में आ गया. अंतरिक्ष यान बुधवार तड़के सूर्य की कक्षा से मंगल की कक्षा में प्रवेश कर जाएगा.

PRITAM DASS SHARMA

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Re: India's first space mission to Mars
« Reply #84 on: September 22, 2014, 05:03:11 PM »
नासा का यान मंगल की कक्षा में दाखिल



नासा के मार्स ऐटमस्फिर एंड वालटिल इवोल्यूशन (मैवेन) मिशन ने 10 माह में 44.2 करोड़ मील की दूरी तय कर आखिरकार मंगल ग्रह की कक्षा में प्रवेश कर लिया है.

happybrother

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Re: India's first space mission to Mars
« Reply #85 on: October 07, 2014, 02:45:42 PM »
New York Times apologises for offensive cartoon on India's Mars mission
Days after The New York Times published an offensive cartoon mocking India's successful Mars mission, the leading US daily apologised following readers' complaints.

The cartoon showed a farmer with a cow knocking at the door of a room marked 'Elite Space Club' where two men sit reading a newspaper on India's feat. On September 24, India made history by successfully placing its spacecraft in orbit around Mars, becoming the first country in the world to succeed in such an inter-planetary mission in the maiden attempt itself.

At just USD 74 million, the mission less than the estimated 100 million USD budget of the sci-fi blockbuster "Gravity". Only the US, Russia and Europe have previously sent missions to Mars.

The cartoon showed a farmer with a cow knocking at the door of an 'Elite Space Club'.

Andrew Rosenthal, editorial page editor of the New York Times, wrote in a Facebook post that a "large number of readers" had complained about the cartoon. "The intent of the cartoonist, Heng Kim Song, was to highlight how space exploration is no longer the exclusive domain of rich, Western countries," Rosenthal said.

"Mr Heng, who is based in Singapore, uses images and text - often in a provocative way - to make observations about international affairs. We apologise to readers who were offended by the choice of images in this cartoon." Rosenthal said Heng "was in no way trying to impugn India, its government or its citizens".

"We appreciate that readers have shared their feedback, which we welcome," he said.

After India's successful arrival at the Red Planet with the low-cost Mars Orbiter Mission (MOM), US space agency NASA has lauded it. "It was an impressive engineering feat, and we welcome India to the family of nations studying another facet of the Red Planet. We look forward to MOM adding to the knowledge the international community is gathering with the other spacecraft at Mars," NASA Administrator Charles Bolden said.

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Re: India's first space mission to Mars
« Reply #86 on: July 05, 2015, 01:10:18 PM »

sheemar

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Re: India's first space mission to Mars
« Reply #87 on: July 09, 2016, 06:51:53 PM »
 ‘Dark streaks’ on Mars give NASA a hint that Red Planet may have water
Published time: 9 Jul, 2016 06:39
Edited time: 9 Jul, 2016 11:21
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NASA has examined thousands of “dark streaks” on Mars which might have formed due to liquid water, ice or vapor. The results of the study give “additional support for the notion that significant amounts of near-surface water can be found on Mars today."

The agency posted a series of photographs obtained from the Valles Marineris region near Mars' equator which depict numerous dark lines found around the planet’s canyons.

According to the scientists, the mysterious streaks might be indications of the presence of either frozen or liquid water, or vapor.
© NASA
© NASA

“There are so many of them, it's hard to keep track," said Matthew Chojnacki of the University of Arizona's Lunar and Planetary Laboratory, Tucson, and lead author of the new report in the Journal of Geophysical Research: Planets.

The study looked at thousands of lines known as recurring slope lineae, or RSL – a special term adopted by NASA scientists given that the do not yet know how the lines form.

"Collectively, results provide additional support for the notion that significant amounts of near-surface water can be found on Mars today and suggest that a widespread mechanism, possibly related to the atmosphere, is recharging RSL sources," the scientists wrote in the press release.

According to NASA, the streaks are much more “widespread than previously recognized”.

“…if they are indeed associated with contemporary aqueous activity, that makes this canyon system an even more interesting area than it is just from the spectacular geology alone," the scientists pointed out.
© NASA
© NASA

Although the scientists did write in the press-release that the “dark streaks” “might be signs of liquid water”, they are not sure how they appeared. One of the theories is that the streaks formed due to an underground layer of water. At the same time the scientists say it is unlikely the water from an underground layer reached the surface of canyon ridges and isolated peaks where most of the streaks appear.

While liquid water might be the reason for their formation, the researchers have not ruled out other hypotheses. One of them involves the interaction between salts and water vapor. According to scientists, salts might have pulled water vapor from the Martian atmosphere creating “liquid brine” on the ground surface. The streaks might be left-overs of the salt which is left on the surface after the brine evaporates.

"There are problems with the mechanism of pulling water from the atmosphere, too," Chojnacki said admitting that questions about the streaks formation still remain. If the theory is correct and the streaks did appear due to the salts’ pulling of vapor than as many as 10 to 40 Olympic-size swimming pools would be required for the dark features to form, scientists explain. Although the whole Valles Marineris region seems to have a lot more water vapor than that, the scientists struggle to state a mechanism which would extract water from the atmosphere.

"There do seem to be more ways atmosphere and surface interact in the canyons than in blander topography, such as clouds trailing out of the canyons and low-lying haze in the canyons." he said. "Perhaps the atmosphere-surface interactions in this region are associated with the high aNothingance of recurring slope lineae. We can't rule that out, but a mechanism to make the connection is far from clear."

The scientists also do not rule out the fact that the streaks could have formed due to ice which could be present near Mars’ surface.

Last month NASA announced it was eager to use the Curiosity Rover to investigate dark streaks and take close-up images of the sites of their aNothingance.

 

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