Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2012        Go!    
 
 
March 26, Sunday 2017 1:11 AM       

       HEADLINES: Firework mishap in Kollam again; three injured                                              Development for all, appeasement of none, says UP CM                                              Facebook removes Srijato's controversial poem                                              Kejriwal, 5 others put on trial in Jaitley defamation case                                              Lucknow meat sellers go on strike protesting crackdown                                              Laptop ban hits Dubai for 1.1m weekend travellers                                              'We are here to stay', says Indian-Americans                                              B'desh: 3 killed, 31 injured as commandos storm militants' den                                              Hamilton on pole for Australian GP with record lap                                              Kohli ruled out, Rahane becomes India's 33rd Test captain                                              FIFA lauds Navi Mumbai venue, says this should be benchmark                                              Debutant Kuldeep takes 4, Australia all-out for 300 on Day 1                                              Kaumudi Facebook
       SCI&TECH Next Article: Science creates computer that can decode your thoughts and put them into words  
       Nasa probe sends back its first video of the moon's 'dark side'
 
         Posted on :19:46:00 Feb 2, 2012
   
A A
       Last edited on:19:46:00 Feb 2, 2012
         Tags: Nasa probe, first video, moon's 'dark side
 

NEW YORK: Nasa's twin Grail probes arrived at the moon in early January - and one has just sent back its first video from the 'dark' side of the moon, the one we don't see from Earth.

The video shows a flight from the north pole to the south pole of the moon.

'It's very rugged and covered with impact craters from asteroids that hit the moon's surface,' says Maria Zuber, Nasa's principal investigator on Grail.

In the video, the north pole of the Moon is visible at the top of the screen as the spacecraft flies toward the lunar south pole.

The side explored in the video can never be seen from Earth. The moon is 'tidally locked' to earth, so one side always faces away from us.

It's the first video from the two probes - named 'Ebb' and 'Flow' - but many more will be sent back as American school pupils join in an interactive project to explore the moon's 'other' side.

One of the biggest features seen on the lower third of the Moon in the video is the Mare Orientale, a 560 mile-wide impact basin that straddles both the Moon’s near and far side.

Near the bottom of the screen, the video shows the 93-mile-wide Drygalski crater - recognisable from the distinctive star-shaped formation in the middle. It's a central peak within the crater, created billions of years ago by a comet or asteroid impact.

The footage shows a journey from the north to the south pole of the 'dark side' of the moon, revealing huge craters caused by asteroid and comet impacts billions of years ago.

The two probes will continue to orbit the moon in tight formation to measure its gravity - and map its little-understood interior.

The probes will measure gravity by monitoring its effects on their flight paths as they fly over the moon's surface just 35 miles up.

The $496million mission will also be closely watched by schoolchildren. A project by Sally Ride, the first American woman in space, will allow school pupils to use cameras aboard the probes to zoom in and pick out their favourite lunar spots to photograph.

‘We have had great response from schools around the country, more than 2,500 signed up to participate so far,’ Ride said.

'In mid-March, the first pictures of the Moon will be taken by students. I expect this will excite many students about possible careers in science and engineering.’

The mission could answer questions such as whether there was ever a second moon - and why our moon is such an odd shape.
Nasa's Charles Boulden said. 'The twin GRAIL spacecraft will vastly expand our knowledge of our Moon and the evolution of our own planet.'

Grail is expected to help researchers better understand why the moon is asymmetrical and how it formed by mapping the uneven lunar gravity field.

Nasa describes the mission as a 'journey to the centre of the moon.'

Previous lunar missions have attempted to study the moon's gravity - which is about one-sixth Earth's pull - with mixed results.
Grail is the first mission devoted to this goal.

A A
       SCI&TECH
Next Article: Science creates computer that can decode your thoughts and put them into words
 
 
SCI&TECH HEADLINES
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  
'New extension may improve inflight WiFi'  
Frogs can see colour in extreme darkness: study  
NASA may put astronauts on deep space test flight  
Juno to remain in current orbit around Jupiter: NASA  
US man receives new face from donor  
Over 100 new potential planets spotted  
ISRO to launch record 104 satellites on Feb 15  
Now, video-makers can live stream on YouTube  
Music, drugs stimulate same part of brain: study  
Facebook adds tool for helping in times of crisis  
Moon may have formed from collision of tiny 'moonlets'  
China to set up world's highest altitude telescopes in Tibet  
NASA to launch two robotic probes to study early solar system  
After Mars, ISRO eyes Venus and Jupiter  
New, rare galaxy spotted over 359 mln light-years away  
Coconut sized tumor removed from Iraqi woman's head  
Bacteria-powered battery built on single sheet of paper  
'Human-made objects on Earth amount to 30 trillion tonnes'  
Element 117 officially named 'Tennessine'  
Predatory bacteria may wipe out 'superbugs': study  
New potent vaccine may spell end for HIV  
Water exists deeper in Earth than thought: study  
 
Do you support the choice of Yogi as UP chief minister?
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