Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2012        Go!    
 
 
June 26, Monday 2017 10:43 AM       

       HEADLINES: Handwriting is not that of Pulsar Suni’s, Dilip’s statement to be recorded                                              Woman tied to tree and assaulted, an insult to state, says Chennithala                                              Telephonic conversation between Dilip’s manager and Vishnu exposed                                              Unexpected hurricane at Kundamkulam                                              K R Mohanan dies                                              Five more TN fishermen arrested by Sri Lankan Navy                                              Modi greets nation on Eid, says diversity is India's strength                                              123 killed, 100 injured as oil tanker explodes in Pak                                              Malaysia-bound AirAsia flight ‘shaking like washing machine’ returns to Aus                                              Shiv Kapur makes cut, but slips to T-42nd in Germany                                              Super Srikanth lifts Australian Open Super Series                                              BAI announces Rs 5 lakh for Srikanth                                              Kaumudi Facebook
       SCI&TECH Next Article: Male birth control shots may lower pregnancy odds: study  
       Curiosity rover discovers rare 'Egg Rock' on Mars
 
         Posted on :16:03:37 Nov 4, 2016
   
A A
       Last edited on:16:03:37 Nov 4, 2016
         Tags: Curiosity, Egg Rock, Mars
 
WASHINGTON: A globular, golf-ball-size object discovered by NASA's Curiosity rover on Mars has been confirmed as a rare iron-nickel meteorite fallen from the red planet's sky.
 
Iron-nickel meteorites are a common class of space rocks found on Earth, and previous examples have been seen on Mars, but this one, called "Egg Rock," is the first on Mars examined with a laser-firing spectrometer, NASA said.
 
To do so, the rover team used Curiosity's Chemistry and Camera (ChemCam) instrument.Scientists of the Mars Science Laboratory (MSL) project, which operates the rover, first noticed the odd-looking rock in images taken by Curiosity's Mast Camera (Mastcam) at a site the rover reached by an October 27 drive.
 
"The dark, smooth and lustrous aspect of this target, and its sort of spherical shape attracted the attention of some MSL scientists when we received the Mastcam images at the new location," said ChemCam team member Pierre-Yves Meslin, of National Centre for Scientific Research (CNRS) and the University of Toulouse in France.
 
ChemCam found iron, nickel and phosphorus, plus lesser ingredients, in concentrations still being determined through analysis of the spectrum of light produced from dozens of laser pulses at nine spots on the object.
 
The enrichment in both nickel and phosphorus at some of the same points suggests the presence of an iron-nickel-phosphide mineral that is rare except in iron-nickel meteorites, Meslin said.
 
Iron meteorites typically originate as core material of asteroids that melt, allowing the molten metal fraction of the asteroid's composition to sink to the centre and form a core.
 
"Iron meteorites provide records of many different asteroids that broke up, with fragments of their cores ending up on Earth and on Mars," said ChemCam team member Horton Newsom of the University of New Mexico in the US.
 
"Mars may have sampled a different population of asteroids than Earth has," said Newsom. In addition, the study of iron meteorites found on Mars - including examples found previously by Mars rovers - can provide information about how long exposure to the Martian environment has affected them, in comparison with how Earth's environment affects iron meteorites.
 
Egg Rock may have fallen to the surface of Mars many millions of years ago, NASA said. Researchers will be analysing the ChemCam data from the first few laser shots at each target point and data from subsequent shots at the same point, to compare surface versus interior chemistry.
 
Egg Rock was found along the rover's path up a layer of lower Mount Sharp called the Murray formation, where sedimentary rocks hold records of ancient lake-bed environments on Mars.
A A
       SCI&TECH
Next Article: Male birth control shots may lower pregnancy odds: study
 
 
SCI&TECH HEADLINES
Theweightmonitor.com launches mobile app for easier access to one-stop weight management platform  
New drug to treat blood cancer developed  
Threat of asteroid impact looming over Earth: experts  
Hottest known planet in universe discovered  
Wireless, battery-less pacemaker developed  
'Manned missions to Moon, Mars may face medical emergencies'  
Ransomware threat: Centre activates mechanism to prevent ‘Wannacry’ cyber attack  
2 lakh hit by 'unprecedented' cyberhack in 150 nations:Europol  
foodpanda revamps mobile app; provides more options  
ixigo launches trains app for Apple iOS users  
Virtual humans may help doctors learn empathy: study  
Gamers, here are five games to watch out for  
Yahoo India homepage gets brand new look  
Spacecraft flies between Saturn and rings in historic 1st  
Google targets 'fake news,' offensive search suggestions  
Offensive WhatsApp posts can land group admin in jail  
Facebook for 'everyone' and not just high end: Zuckerberg  
Google Earth re-invented for new era  
NASA images show how India looks from space at night  
Signs of life detected below world's deepest point  
'iPhones assembly in Bengaluru by Apple in less than a month'  
Five astronauts assigned to future ISS mission: NASA  
Trump plans to send humans to Mars  
First patient cured of rare blood disorder'  
Indian-American teen wins top science award worth USD 250,000  
 
Actress case: Do you think Pulsar Suni's letter is part of a conspiracy?
yes
 
no
 
don't know
 
 
 
Home Kerala India World Business Sports Sci&Tech Education Automobile CityNews Movies Environment Letters 
© Copyright keralakaumudi Online 2011  |  Reproduction in whole or in part without written permission is prohibited.
Head Office Address: Kaumudi Buildings, Pettah P.O, Trivandrum - 695024, India.
Online queries talk to Deepu Sasidharan, + 91 98472 38959 or Email deepu[at]kaumudi.com
Customer Service -Advertisement Disclaimer Statement   |  Copyright Policy