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

Skip to comments.

Astronomy Picture of the Day -- Phobos: Doomed Moon of Mars
NASA ^ | October 28, 2012 | (see photo credit)

Posted on 10/28/2012 11:59:25 AM PDT by SunkenCiv

Explanation: This moon is doomed. Mars, the red planet named for the Roman god of war, has two tiny moons, Phobos and Deimos, whose names are derived from the Greek for Fear and Panic. These martian moons may well be captured asteroids originating in the main asteroid belt between Mars and Jupiter or perhaps from even more distant reaches of the Solar System. The larger moon, Phobos, is indeed seen to be a cratered, asteroid-like object in this stunning color image from the Mars Reconnaissance Orbiter, recorded at a resolution of about seven meters per pixel. But Phobos orbits so close to Mars -- about 5,800 kilometers above the surface compared to 400,000 kilometers for our Moon -- that gravitational tidal forces are dragging it down. In 100 million years or so Phobos will likely be shattered by stress caused by the relentless tidal forces, the debris forming a decaying ring around Mars.

October 28, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; phobos; science; thuria
Navigation: use the links below to view more comments.
first 1-5051-55 next last
[Credit: HiRISE, MRO, LPL (U. Arizona), NASA ]

1 posted on 10/28/2012 11:59:33 AM PDT by SunkenCiv
[ Post Reply | Private Reply | View Replies]

To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

2 posted on 10/28/2012 12:00:27 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

Is that ice or metal on the surface?


3 posted on 10/28/2012 12:02:43 PM PDT by wastedyears (The First Law of Heavy Metal: Not all metal is satanic.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: wastedyears

Pure platinum.


4 posted on 10/28/2012 12:05:02 PM PDT by The KG9 Kid (Semper Fi)
[ Post Reply | Private Reply | To 3 | View Replies]

To: SunkenCiv

What they need to do is ram about 50 or so of these into Mars to boost the planet’s gravity and make it more suitable for human life.


5 posted on 10/28/2012 12:08:10 PM PDT by Brilliant
[ Post Reply | Private Reply | To 1 | View Replies]

To: wastedyears

It’s the streets of a martian trailer park.


6 posted on 10/28/2012 12:11:54 PM PDT by bgill (Evil doers are in every corner of our government. Have we passed the point of no return?)
[ Post Reply | Private Reply | To 3 | View Replies]

To: SunkenCiv

That is one cool rock. It would look great in my collection.


7 posted on 10/28/2012 12:13:37 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Cool. That one crater on the far right side of the pic almost looks like a rocket booster surrounded by millions of years of debris collection


8 posted on 10/28/2012 12:20:42 PM PDT by GeronL (http://asspos.blogspot.com)
[ Post Reply | Private Reply | To 2 | View Replies]

To: SunkenCiv

I followed the pic links.... is that image large enough? lol.

Of course I copied it to my HDD


9 posted on 10/28/2012 12:23:53 PM PDT by GeronL (http://asspos.blogspot.com)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

It’s “Fear’’ and “Terror’’.’’ Demos’’ is ‘’terror’’.


10 posted on 10/28/2012 12:25:16 PM PDT by jmacusa (Political correctness is cultural Marxism. I'm not a Marxist.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: GeronL; SunkenCiv

11 posted on 10/28/2012 12:32:23 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 9 | View Replies]

To: SunkenCiv
Of course, 100 million years from now, when Phobos crashes into the surface of Mars, it will be George W. Bush's fault.

How many craters on Mars are the result of earlier Phobos-like moons crashing into the planet?

The original sense of "phobos" was "flight" (the related verb "phebomai" means "to be put to flight"), and according to the lexicon that is the only meaning of "phobos" in Homer. Later it becomes "panic fear" (such as causes flight), then "fear" more generally.

12 posted on 10/28/2012 12:41:22 PM PDT by Verginius Rufus
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

i’d be most interested in what caused the drag lines?? Some lines were made before craters, others were made after craters. hhhmmmmmmm...


13 posted on 10/28/2012 12:41:40 PM PDT by sit-rep
[ Post Reply | Private Reply | To 1 | View Replies]

To: bigheadfred

lol.


14 posted on 10/28/2012 12:47:11 PM PDT by GeronL (http://asspos.blogspot.com)
[ Post Reply | Private Reply | To 11 | View Replies]

To: SunkenCiv

A spot of Bondo and a little rubbing compound will take that right out.


15 posted on 10/28/2012 12:48:10 PM PDT by The Cajun (Sarah Palin, Mark Levin......Nuff said.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: bigheadfred

LOL! Good stuff.


16 posted on 10/28/2012 12:51:26 PM PDT by FlingWingFlyer (Osama bin Laden is dead, Chrysler moved to Italy and China.)
[ Post Reply | Private Reply | To 11 | View Replies]

To: SunkenCiv

If you weigh 200 pounds on Earth, you’ll weigh 3 ounces on Phobos.


17 posted on 10/28/2012 12:58:07 PM PDT by samtheman (Obama. Mugabe. Chavez. (Obamugavez))
[ Post Reply | Private Reply | To 1 | View Replies]

To: bigheadfred

That’s a spud, Nick.


18 posted on 10/28/2012 12:59:35 PM PDT by fish hawk
[ Post Reply | Private Reply | To 11 | View Replies]

To: SunkenCiv

Has anyone ever explained how the descriptions of the two moons of Mars got into the book Gullivers Travels, years and years before they were ‘dicovered’ by astronomers?


19 posted on 10/28/2012 1:07:22 PM PDT by Balding_Eagle (Liberals, at their core, are aggressive & dangerous to everyone around them,)
[ Post Reply | Private Reply | To 1 | View Replies]

To: The KG9 Kid
The gleaming titanium shell of the abandoned interstellar generation ship is showing through the eons of space dust.
20 posted on 10/28/2012 1:27:36 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
[ Post Reply | Private Reply | To 4 | View Replies]

To: Balding_Eagle

21 posted on 10/28/2012 1:35:43 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
[ Post Reply | Private Reply | To 19 | View Replies]

To: fish hawk

I knows spuds.


22 posted on 10/28/2012 1:38:44 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 18 | View Replies]

To: SunkenCiv

Animation illustrating the hypothesis of asteroid-belt origin for the moons.
23 posted on 10/28/2012 1:46:49 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Verginius Rufus

And then this little known fact: It became hobosphobos or fear of bums and homohobophobos or fear of gay bums and then it became photohomohobophobos or fear of pictures of gay bums. And then protophotohomohobophobos which I can’t explain since I’m 0ut 0f “O’s”.


24 posted on 10/28/2012 1:47:09 PM PDT by count-your-change (You don't have to be brilliant, not being stupid is enough.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: BenLurkin

What movie is that screenshot from?


25 posted on 10/28/2012 1:48:15 PM PDT by James C. Bennett (An Australian.)
[ Post Reply | Private Reply | To 21 | View Replies]

To: James C. Bennett

That is the original Battlestar Galactica.


26 posted on 10/28/2012 1:51:07 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 25 | View Replies]

To: BenLurkin
The gleaming titanium shell of the abandoned interstellar generation ship is showing through the eons of space dust.

Don't be absurd - it's a battle-damaged impulse-drive frigate.

27 posted on 10/28/2012 1:51:40 PM PDT by Talisker (One who commands, must obey.)
[ Post Reply | Private Reply | To 20 | View Replies]

To: Balding_Eagle
Has anyone ever explained how the descriptions of the two moons of Mars got into the book Gullivers Travels, years and years before they were ‘dicovered’ by astronomers?

You think Gulliver's Travels is a book?

28 posted on 10/28/2012 1:53:30 PM PDT by Talisker (One who commands, must obey.)
[ Post Reply | Private Reply | To 19 | View Replies]

To: count-your-change; GeronL; SunkenCiv

You forgot protophotohomoobamahobophobos which me picturing that fag bum obama banished in exile to some moon flying around Mars.


29 posted on 10/28/2012 1:55:56 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 24 | View Replies]

To: SunkenCiv

I’m always fascinated by the beautiful photos and the information provided.
Thank you very much, SunkenCiv.


30 posted on 10/28/2012 2:07:30 PM PDT by onyx (FREE REPUBLIC IS HERE TO STAY! DONATE MONTHLY! IF YOU WANT ON SARAH PALIN''S PING LIST, LET ME KNOW)
[ Post Reply | Private Reply | To 2 | View Replies]

To: bigheadfred

That was very confusing. lol.


31 posted on 10/28/2012 2:10:39 PM PDT by GeronL (http://asspos.blogspot.com)
[ Post Reply | Private Reply | To 29 | View Replies]

To: James C. Bennett

http://www.megomuseum.com/reboot/wp-content/uploads/2011/10/battlestar_galactica_classic.jpg


32 posted on 10/28/2012 2:12:55 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
[ Post Reply | Private Reply | To 25 | View Replies]

To: GeronL

Just picture that fag bum obama banished in exile to some moon flying around Mars and ALL WILL BE WELL.


33 posted on 10/28/2012 2:18:11 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 31 | View Replies]

To: bigheadfred

After ‘protophoto........’ you expect me to remember even more? You’re brutal, brutal!


34 posted on 10/28/2012 2:23:10 PM PDT by count-your-change (You don't have to be brilliant, not being stupid is enough.)
[ Post Reply | Private Reply | To 29 | View Replies]

To: Balding_Eagle
The two moons were discovered by one astronomer, an American--Asaph Hall--in 1877, in Washington, D.C., in what was later Dick Cheney's house.

How the author of "Gulliver's Travels" knew about the moons, I don't know, but he was pretty swift.

35 posted on 10/28/2012 2:53:11 PM PDT by Verginius Rufus
[ Post Reply | Private Reply | To 19 | View Replies]

To: Verginius Rufus

LOL


36 posted on 10/28/2012 3:02:27 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 35 | View Replies]

To: bigheadfred
That is one cool rock. It would look great in my collection.

I keep one just like it under my bed. The altitude is rough in the mornings though.

37 posted on 10/28/2012 3:06:43 PM PDT by MaxMax
[ Post Reply | Private Reply | To 7 | View Replies]

To: SunkenCiv

Second in desirability only to our moon as a settlement for pioneers. Doubt there’s any water there though after capture and/or tidal energy input.
Light enough that it may be used for travel in the future.

(He’s crazy I tell you! Crazy!)


38 posted on 10/28/2012 3:07:24 PM PDT by mrsmith (Dumb sluts: Lifeblood of the Media, Backbone of the Democrat Party!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: The Cajun

Is that a peanut in the end of that thing then I know what it is lmao.....


39 posted on 10/28/2012 3:08:22 PM PDT by Lees Swrd ("Arms discourage and keep the invader and plunderer in awe and preserve order in the world as well")
[ Post Reply | Private Reply | To 15 | View Replies]

To: MaxMax

Maybe you need to stop smoking. And yeah, you will lose that debate. teehee


40 posted on 10/28/2012 3:08:54 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 37 | View Replies]

To: Talisker
You think Gulliver's Travels is a book?

OK, my age is showing, it was a book when I read it as a youngster.

41 posted on 10/28/2012 3:49:29 PM PDT by Balding_Eagle (Liberals, at their core, are aggressive & dangerous to everyone around them,)
[ Post Reply | Private Reply | To 28 | View Replies]

popcorn self-ping

http://www.amazon.com/Gullivers-Travels-Barnes-Noble-Classics/dp/1593081324/ref=sr_1_3?s=books&ie=UTF8&qid=1351464821&sr=1-3&keywords=gulliver%27s+travels


42 posted on 10/28/2012 3:57:32 PM PDT by ExGeeEye (Wait a minute! Romney doesn't suck? I'm trying to keep up.)
[ Post Reply | Private Reply | To 41 | View Replies]

To: Verginius Rufus

Nice play on words there! I had forgotten who the author was, but your little hint clued me right in.

According to Wikipedia the book was published in 1726, 51 years prior to the ‘discovery’ of the moons.

The moons were described in some detail 51 years prior to their discovery.

There still are some real mysteries left to solve, aren’t there?


43 posted on 10/28/2012 4:19:35 PM PDT by Balding_Eagle (Liberals, at their core, are aggressive & dangerous to everyone around them,)
[ Post Reply | Private Reply | To 35 | View Replies]

To: SunkenCiv

I’m sick with worry about this poor, doomed moon. Only 100 million years to live! What a tragedy.

And what is that circuit board pattern in white/silver doing there, anyway?


44 posted on 10/28/2012 5:29:01 PM PDT by TheOldLady
[ Post Reply | Private Reply | To 2 | View Replies]

To: TheOldLady
And what is that circuit board pattern in white/silver doing there, anyway?

Yup, and you can see where the shorts between runs happened.
Scrape the bad stuff out, wire around, power up and see what happens :)

45 posted on 10/28/2012 5:51:11 PM PDT by The Cajun (Sarah Palin, Mark Levin......Nuff said.)
[ Post Reply | Private Reply | To 44 | View Replies]

To: The Cajun

I’ll grab my gear and supplies and get right on that. You coming?


46 posted on 10/28/2012 7:09:00 PM PDT by TheOldLady
[ Post Reply | Private Reply | To 45 | View Replies]

To: TheOldLady
I’ll grab my gear and supplies and get right on that. You coming?

Before I retired 14 years ago, I was working with a $2000 Pace X-20 binocular microscope and a $2500 Pace solder/desolder station, don't know if even they would help me now days, LOL!

47 posted on 10/28/2012 7:34:18 PM PDT by The Cajun (Sarah Palin, Mark Levin......Nuff said.)
[ Post Reply | Private Reply | To 46 | View Replies]

To: The Cajun

Well, maybe next time.


48 posted on 10/28/2012 7:41:44 PM PDT by TheOldLady
[ Post Reply | Private Reply | To 47 | View Replies]

To: SunkenCiv

100 million years?.......I’ll wait....


49 posted on 10/28/2012 8:03:36 PM PDT by Red Badger (Why yes, that was crude and uncalled for......That's why I said it..............)
[ Post Reply | Private Reply | To 1 | View Replies]

To: sit-rep

The lines are caused by ejecta from craters, some of the craters have been superseded by other impacts.


50 posted on 10/29/2012 5:46:08 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | To 13 | View Replies]


Navigation: use the links below to view more comments.
first 1-5051-55 next 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