Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Red Planet's Ancient Equator Located
Scientific American (online) ^ | April 20, 2005 | Sarah Graham

Posted on 04/24/2005 8:18:25 PM PDT by SunkenCiv

Jafar Arkani-Hamed of McGill University discovered that five impact basins--dubbed Argyre, Hellas, Isidis, Thaumasia and Utopia--form an arclike pattern on the Martian surface. Three of the basins are well-preserved and remain visible today. The locations of the other two, in contrast, were inferred from measurements of anomalies in the planet's gravitational field... a single source--most likely an asteroid that was initially circling the sun in the same plane as Mars--created all five craters. At one point the asteroid passed close to the Red Planet... and was broken apart by the force of the planet's gravity. The resulting five pieces subsequently slammed into Mars along its then equator. The center of the circle inscribed by the five craters, which marks the planet's ancient south pole, lies at present day latitude -30 and longitude 175.

(Excerpt) Read more at sciam.com ...


TOPICS: Astronomy; History; Science
KEYWORDS: archaeology; asteroid; asteroids; bodeslaw; catastrophism; deimos; emiliospedicato; fear; ggg; godsgravesglyphs; hemisphereofcraters; history; impact; impacts; mars; martiandesert; martianequator; martianimpact; moon; moons; oppositehemisphere; patten; phobos; rochelimit; rocheradius; space; spedicato; terror; titiusbode; titiusbodeslaw; tvf; vanflandern; xplanets
Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-65 last
update.
 
Catastrophism
· join · view topics · view or post blog · bookmark · post new topic ·

61 posted on 06/25/2008 5:54:19 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_________________________Profile updated Friday, May 30, 2008)
[ Post Reply | Private Reply | To 1 | View Replies]

To: null and void; Darksheare
Ooooookay. What tipped Mars off its' then axis?

Darksheare's fault.

62 posted on 06/25/2008 5:57:33 PM PDT by Grizzled Bear ("Does not play well with others.")
[ Post Reply | Private Reply | To 7 | View Replies]

To: Grizzled Bear; null and void

I sneezed, sorry about that.


63 posted on 06/26/2008 6:45:40 AM PDT by Darksheare (Why do they call it Salad Dressing when clothes aren't in any way involved?)
[ Post Reply | Private Reply | To 62 | View Replies]


64 posted on 12/10/2010 7:05:44 PM PST by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | View Replies]


65 posted on 01/10/2016 7:20:47 PM PST by SunkenCiv (Here's to the day the forensics people scrape what's left of Putin off the ceiling of his limo.)
[ Post Reply | Private Reply | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-65 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson