Date: Sat, 01 Jun 2013 14:03:56 -0400 From: "Mike B." <yahoo at omniphile.com> To: WSFA members <WSFAlist at KeithLynch.net>, WSFA Official List <wsfa-forum at yahoogroups.com> Subject: [WSFA] =?windows-1252?Q?Re=3A=3A_An_answer_to_a_lunar_myste? =?windows-1252?Q?ry=3A_Why_is_the_moon=92s_gravity_so_unev? =?windows-1252?Q?en=3F?= Reply-To: WSFA members <WSFAlist at KeithLynch.net> On 5/31/2013 6:58 PM, mark wrote: > Using high-resolution gravity data from NASA's Gravity Recovery and > Interior Laboratory (GRAIL) mission, researchers at MIT and Purdue > University have mapped the structure of several lunar mascons and found > that their gravitational fields resemble a bull's-eye pattern: a center of > strong, or positive, gravity surrounded by alternating rings of negative > and positive gravity. "Negative and positive gravity"???? What the hell is "negative gravity"?? I'm surprised that got through in an MIT publication. I suspect that they meant increasing and decreasing levels of attraction, not negative gravity. -- Mike B.