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Astronomy Picture of the Day -- Earth's Richat Structure
NASA ^
| May 19, 2013
| (see photo credit)
Posted on 05/19/2013 6:05:54 AM PDT by SunkenCiv
Explanation: What on Earth is that? The Richat Structure in the Sahara Desert of Mauritania is easily visible from space because it is nearly 50 kilometers across. Once thought to be an impact crater, the Richat Structure's flat middle and lack of shock-altered rock indicates otherwise. The possibility that the Richat Structure was formed by a volcanic eruption also seems improbable because of the lack of a dome of igneous or volcanic rock. Rather, the layered sedimentary rock of the Richat structure is now thought by many to have been caused by uplifted rock sculpted by erosion. The above image was captured by the ASTER instruments onboard the orbiting orbiting Terra satellite. Why the Richat Structure is nearly circular remains a mystery.
(Excerpt) Read more at 129.164.179.22 ...
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; atlantis; catastrophism; geology; godsgravesglyphs; mauritania; poseidonia; richatstructure; saharadesert; science
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1
posted on
05/19/2013 6:05:54 AM PDT
by
SunkenCiv
To: thackney
Cool photo of a probable uplift dome.
2
posted on
05/19/2013 6:07:24 AM PDT
by
dirtboy
To: SunkenCiv
It is, obviously, the remnants of a landing platform for alien spacecraft.
And I’ll be willing to bet that the Nazca Lines are EXACTLY on the opposite side of the planet (give or take a few 100 degrees of latitude and longitude< LOL)
3
posted on
05/19/2013 6:09:08 AM PDT
by
left that other site
((Ban the ubiquitous and deadly solvent, Di-hydrogen monoxide!!!))
To: dirtboy
4
posted on
05/19/2013 6:10:51 AM PDT
by
left that other site
((Ban the ubiquitous and deadly solvent, Di-hydrogen monoxide!!!))
To: 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...
5
posted on
05/19/2013 6:13:01 AM PDT
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
Not an impact crater? Not 'cryptovolcanism'? Erosional feature? But we don't know why it's round? I love a mystery. :')
6
posted on
05/19/2013 6:13:05 AM PDT
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
To: left that other site
7
posted on
05/19/2013 6:15:22 AM PDT
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
To: left that other site
8
posted on
05/19/2013 6:15:46 AM PDT
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
To: left that other site
Clearly, there was a much earlier advanced civilization on Earth, and the Borg removed it from this spot.
9
posted on
05/19/2013 6:16:43 AM PDT
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
To: SunkenCiv
10
posted on
05/19/2013 6:20:17 AM PDT
by
left that other site
((Ban the ubiquitous and deadly solvent, Di-hydrogen monoxide!!!))
To: SunkenCiv
11
posted on
05/19/2013 6:35:48 AM PDT
by
BenLurkin
(This is not a statement of fact. It is either opinion or satire; or both)
To: BenLurkin
12
posted on
05/19/2013 6:38:12 AM PDT
by
katana
(Just my opinions)
To: BenLurkin
13
posted on
05/19/2013 7:13:45 AM PDT
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
To: SunkenCiv
The rest of us weren’t worthy of assimilation, hunh?
14
posted on
05/19/2013 7:17:55 AM PDT
by
mdmathis6
(Rest assured, Mankind is loved....both completely and severely!)
To: BenLurkin
IOW, the crater is about 31 miles across.
15
posted on
05/19/2013 7:18:15 AM PDT
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
To: left that other site
“It is, obviously, the remnants of a landing platform for alien spacecraft.”
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Actually that’s where my great granpappy’s still blew up.
16
posted on
05/19/2013 7:22:02 AM PDT
by
RipSawyer
(I was born on Earth, what planet is this?)
To: SunkenCiv
17
posted on
05/19/2013 7:23:17 AM PDT
by
BenLurkin
(This is not a statement of fact. It is either opinion or satire; or both)
To: SunkenCiv
It looks like a hurricane.
To: SunkenCiv
19
posted on
05/19/2013 7:42:56 AM PDT
by
mikrofon
(APOD Bump)
To: SunkenCiv
Looks like an eye with milky cataracts.
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