Wednesday, July 29, 2015   |   6,076 users online
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos  ·  Chat
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- . . (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
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
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
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
No one said it had. The title specifically refers to SURFACE gravity. Source: The title is accurate, it's your understanding of it that doesn't seem to be.

Please Login or Register to post a comment.

Other news in this category
Flowing ice and a red haze found on Pluto
Posted 7-25-2015 | 83 comments
New Horizons principal investigator Alan Stern has referred to the planet as a 'scientific wonderland'....
NASA announces discovery of a second Earth
Posted 7-23-2015 | 43 comments
Astronomers using the Kepler Telescope have found the most Earth-like extrasolar planet ever discovered....
New mountain range revealed on Pluto
Posted 7-22-2015 | 83 comments
New images from the New Horizons probe have revealed another vast region of mountains on Pluto's surface....
NASA releases new 'blue marble' Earth image
Posted 7-21-2015 | 12 comments
The breathtaking image was captured one million miles away by the Deep Space Climate Observatory....
Juno spacecraft to reach Jupiter next year
Posted 7-19-2015 | 6 comments
NASA's solar-powered Juno spacecraft will be arriving in orbit around Jupiter in around 12 months' time....
$5 trillion asteroid to pass us by on Sunday
Posted 7-17-2015 | 24 comments
A nearby asteroid loaded with a platinum core is thought to be worth an unfathomable amount of money....
First close-up pictures of Pluto revealed
Posted 7-16-2015 | 83 comments
The first ever high resolution images of the surface of Pluto have been unveiled at a press conference....
ESA head proposes village on the moon
Posted 7-15-2015 | 29 comments
Director General Johann-Dietrich Woerner has outlined his plans for the future of space exploration....
New Horizons probe has arrived at Pluto
Posted 7-14-2015 | 83 comments
NASA has confirmed today that the New Horizons probe has successfully made its closest approach to Pluto....
Enormous black hole has outgrown its galaxy
Posted 7-11-2015 | 13 comments
Astronomers have discovered a supermassive black hole that appears to have grown to a ridiculous size....
Giant 'heart' spotted in close-ups of Pluto
Posted 7-10-2015 | 17 comments
The latest photographs from New Horizons show a distinctive heart shape on the surface of Pluto....

 View: More news in this category
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.6 © 2001-2015
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ