Saturday, October 1, 2016
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Moon's surface gravity mystery solved


Posted on Saturday, 1 June, 2013 | Comment icon 12 comments | News tip by: Waspie_Dwarf


Image credit: NASA

 
NASA's twin GRAIL probes have helped to solve why the Moon's gravity appears to be uneven.

The two spacecraft had orbited the Moon for nine months, recording information about the composition and internal structure. During this time, scientists were able to pinpoint the location of several areas of concentrated mass which are thought to be responsible for the Moon's uneven gravity. The findings will help improve navigation during future missions to the Moon and beyond.

"GRAIL data confirm that lunar mascons were generated when large asteroids or comets impacted the ancient moon, when its interior was much hotter than it is now," said GRAIL co-investigator Jay Melosh.

"NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission has uncovered the origin of massive invisible regions that make the moon's gravity uneven, a phenomenon that affects the operations of lunar-orbiting spacecraft."

  View: Full article |  Source: NASA

  Discuss: View comments (12)

   


 
Recent comments on this story
Comment icon #3 Posted by shrooma on 31 May, 2013, 23:34
this is what I had in mind waspie- . http://www.physics.ox.ac.uk/history.asp?page=bigghis . (which also has a little piece on the great (unknown!) john mitchell, who's house is at the back of mine!) :-)
Comment icon #4 Posted by Waspie_Dwarf on 1 June, 2013, 11:25
this is what I had in mind waspie- Interesting. I didn't know of that experiment. Thanks shrooma.
Comment icon #5 Posted by Merc14 on 1 June, 2013, 16:24
This should be a great aid to all the future missions being planned in the coming century.
Comment icon #6 Posted by RingFenceTheCity on 1 June, 2013, 18:53
The thread title is misleading as GRAVITY itself hasn't been "solved". The pictures are the same as I've seen years ago. Why no information on the possible inner core??
Comment icon #7 Posted by DONTEATUS on 2 June, 2013, 17:37
Gee ? Or as its put "G" Gravity such a fickle thing we know only a bit about it !
Comment icon #8 Posted by lightly on 2 June, 2013, 19:20
pretty interesting though.... gravity may not have been 'solved' .. but it apparently has something to do with mass? I wonder if the question is.. what is it specifically about mass that causes attraction? Maybe that is understood?
Comment icon #9 Posted by RingFenceTheCity on 3 June, 2013, 8:49
pretty interesting though.... gravity may not have been 'solved' .. but it apparently has something to do with mass? I wonder if the question is.. what is it specifically about mass that causes attraction? Maybe that is understood? Err, no, that isn't understood at all. There's no official mechanism for gravity due to the accepted theory being based on 400 year old non-sensical mathematical speculation.
Comment icon #10 Posted by Lex540 on 5 June, 2013, 9:49
gravity is it really the strongest force there is i think not
Comment icon #11 Posted by Waspie_Dwarf on 5 June, 2013, 14:56
gravity is it really the strongest force there is i think not Actually of the 4 forces of the standard theory, electromagnetic, strong nuclear, weak nuclear and gravity, gravity is the weakest.
Comment icon #12 Posted by Waspie_Dwarf on 5 June, 2013, 17:00
The thread title is misleading as GRAVITY itself hasn't been "solved". No one said it had. The title specifically refers to SURFACE gravity. The surface gravity, g, of an astronomical or other object is the gravitational acceleration experienced at its surface. The surface gravity may be thought of as the acceleration due to gravity experienced by a hypothetical test particle which is very close to the object's surface and which, in order not to disturb the system, has negligible mass. Source: wikipedia The title is accurate, it's your understanding of it that doesn't seem to be.


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5776352
261847
162715

 
Rosetta is destroyed in comet crash-landing
9-30-2016
ESA's Rosetta spacecraft has gone out in a blaze of glory by deliberately colliding with comet 67P.
Woman is able to smell Parkinson's disease
9-30-2016
Joy Milne from Perth, Australia has developed the unique ability to sniff out the debilitating condition.
Tech giants team up to form AI ethics board
9-29-2016
Several major technology companies have joined forces in an effort to prevent an AI-fuelled apocalypse.
Catholic Church: 'exorcists in urgent demand'
9-29-2016
A rise in occult and superstitious practices has allegedly brought about a major exorcist shortage.
Other news in this category
Rosetta is destroyed in comet crash-landing
Posted 9-30-2016 | 13 comments
ESA's Rosetta spacecraft has gone out in a blaze of glory by deliberately colliding with comet 67P....
 
SpaceX plans to send humans to Mars by 2022
Posted 9-28-2016 | 22 comments
Elon Musk has outlined his extraordinarily ambitious plans to make mankind an interplanetary species....
 
NASA has discovered water plumes on Europa
Posted 9-27-2016 | 29 comments
The find could make it much easier to search for evidence of extraterrestrial life in Europa's oceans....
 
We are all living in a directionless universe
Posted 9-26-2016 | 10 comments
A new study has revealed that, in all likelihood, the universe is expanding equally in all directions....
 
Pluto may have an ocean over 100km deep
Posted 9-24-2016 | 13 comments
Scientists believe that the dwarf planet's interior may be filled with large quantities of liquid water....
 
NASA finds 'evidence of activity' on Europa
Posted 9-22-2016 | 23 comments
The space agency is set to hold a press conference on Monday to announce its latest Hubble findings....
 
Cassini probe begins its final year at Saturn
Posted 9-21-2016 | 5 comments
NASA's highly successful spacecraft will soon be getting up close and personal with the gas giant itself....
 
SpaceX set to reveal interplanetary spaceship
Posted 9-20-2016 | 10 comments
Despite its recent setback, the private space firm still has its sights set firmly on the future....
 
Mars lakes formed more recently than thought
Posted 9-19-2016 | 21 comments
It now appears as though Mars would have been able to support life for longer than is generally believed....
 
ESA reveals most detailed Milky Way map ever
Posted 9-15-2016 | 20 comments
The European Space Agency has unveiled a map of our galaxy charting the positions of 1.1 billion stars....
 
Blue Origin reveals new monster space rocket
Posted 9-14-2016 | 7 comments
The privately-funded space firm founded by Amazon's Jeff Bezos has revealed two huge new rockets. ...
 

 View: More news in this category
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com © 2001-2015
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ