The Hindu Editorial Vocabulary and Analysis 9 September 2019

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The Hindu Editorial Vocabulary

 

So close, yet so far: On Chandrayaan 2 lander debacle

The Indian Space Research Organisation (ISRO) came tantalisingly close to creating history in the early hours of September 7 when the robotic lander Vikram followed the predetermined descent trajectory and came just within 2 km of the lunar surface before contact was lost. While it is unfortunate that the lander failed to safely touchdown, it is apt to remember that ISRO was attempting powered landing for the first time. To put it in perspective, there have been 38 attempts so far by other countries to land a rover on the moon and have succeeded only a little more than half the time. This April, Israel’s Beresheet lunar lander crashed to the lunar surface. But early January this year, China’s Chang’e-4 touched down on the lunar far side and deployed the Yutu-2 rover to explore the South Pole-Aitken Basin. In Vikram, the velocity was successfully reduced from about 6,000 km per hour at the start of the descent at 35 km altitude to a few meters per second before communication snapped. That strongly indicates that powered landing went as per plan till about 2 km altitude from the lunar surface.

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While the powered landing of Vikram and exploration of the moon’s surface for 14 earth days by the Pragyan rover were one of the main objectives of Chandrayaan 2, it is wrong to think that the mission itself has failed. On the contrary, 90-95% of the mission objectives have already been “accomplished”. The orbiter is safe in the intended orbit around the moon. And with the “precise launch and mission management”, its life span will extend to almost seven years. Carrying eight of the 13 payloads, the orbiter will spend the next nearly seven years making high-resolution maps of the lunar surface, mapping the minerals, understanding the moon’s evolution, and most importantly looking for water molecules in the polar regions. Some of the impact craters in the South Pole are permanently shadowed from sunlight and could be ideal candidate sites to harbor water. Water on the moon would, in principle, be used for life support and manufacturing rocket fuel. With the U.S. wanting to send astronauts to the South Pole by 2024, the National Aeronautics and Space Administration (NASA), in particular, will be keen on data from the Chandrayaan 2 orbiter. The ISRO’s Moon Impact Probe and NASA’s Moon Mineralogy Mapper onboard Chandrayaan 1 had already provided evidence of the presence of water in the thin atmosphere of the moon, on the surface and below. A NASA study last year found regions, within 20° of each pole in general and within 10° in particular, showed signs of water. The Chandrayaan 2 orbiter will now possibly reconfirm the presence of water on the moon.

The Hindu Editorial Vocabulary Wordlist

1) TANTALISINGLY (Adv) = enticingly, ( ललचाने वाले अंदाज़ में )
Synonyms = temptingly, enticing
Antonyms = cloyingly.

2) TRAJECTORY (Noun)  = course, ( प्रक्षेप पथ )
Synonyms = track, orbit
Antonyms = off track, off route

3) VELOCITY (Noun) = speed, ( गति  )
Synonyms = pace, celerity
Antonyms = slowness, sluggishness

4) EVOLUTION  (Noun) = development, ( विकास,उद्भेद )
Synonyms = growth, expansion
Antonyms = devolution, deterioration

5) ACCOMPLISHED (Adj)  = expert, ( प्राप्त किया  )
Synonyms = proficient, skillful
Antonyms = amateur, incomplete

6) MAPPING (Noun)  = cartography, (  पता लगाना )
Synonyms = surveying, match
Antonyms = disequilibrium, lopsidedness

 

The Hindu Editorial Vocabulary and Analysis 9 September 2019

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