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Comet-like tail discovered trailing planet Mercury
EurekAlert ^ | 9-22-10 | EurekAlert

Posted on 09/22/2010 2:02:28 PM PDT by Duke C.

This is an image of Mercury's tail obtained from combining a full day of data from a camera aboard the STEREO-A spacecraft. The reflected sunlight off the planet's surface results in a type of over-exposure that causes Mercury to appear much larger than its actual size. The tail-like structure extending anti-sunward from the planet is visible over several days and spans an angular size exceeding that of a full Moon in the night sky.

(Excerpt) Read more at eurekalert.org ...


TOPICS: Astronomy; Science
KEYWORDS: catastrophism; mercury; tail; tails; velikovsky

1 posted on 09/22/2010 2:02:29 PM PDT by Duke C.
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To: Duke C.

Kewl!


2 posted on 09/22/2010 2:05:22 PM PDT by SuziQ
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To: Duke C.; KevinDavis

uber cool


3 posted on 09/22/2010 2:08:46 PM PDT by GeronL (http://libertyfic.proboards.com <--- My Fiction/ Science Fiction Board)
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To: Duke C.
I call BS. Look like a kid holding a 6 dollar flashlight in a field of corn.

/s

4 posted on 09/22/2010 2:14:57 PM PDT by Gabrial (The Whitehouse Nightmare will continue as long as the Nightmare is in the Whitehouse)
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To: Duke C.

If you hold the lens open on any camera and point it at a moving light, it will leave a trail...of light.


5 posted on 09/22/2010 2:55:22 PM PDT by FrankR (obama can only be what WE allow him to be.)
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To: Duke C.

I wager there is life floating in that Hermetic cloud.
With ‘time’ moving quite faster in several ways.


6 posted on 09/22/2010 2:59:29 PM PDT by Diogenesis ('Freedom is the right of all sentient beings.' - Optimus Prime)
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To: Duke C.

Any atmosphere that Mercury may have had was boiled off and ablated long ago, due to its proximity to the sun. The main causes would have been heat and the solar wind. Also consider that Mercury is close enough to the sun where tidal lock limits the rotation. So this “comet tail” may well be any volatiles on the planet surface. Sodium was described in the article as one of the components, so any sodium content in the surface minerals is being released to the temperature and radiation flux. Other elements may be present as well, which would be revealed by spectroscopy.

On a related note, some planets were discovered, in close proximity to their stars, and having mass and compositions similar to Jupiter. These “hot giants”, with diameters maybe twice that of Jupiter (since gasses expand when heated), may not last long (I’m describing astronomical time scales) since their host star will likely ablate the atmosphere. What may mitigate that is if such a planet also has a strong magnetic field (liquid iron/nickel core, or metallic hydrogen like Jupiter’s), resulting in a “bow shock” shielding it from the solar wind (or whatever the equivalent term is in this case).


7 posted on 09/22/2010 3:10:13 PM PDT by Fred Hayek (FUBO! I salute you with the soles of my shoes!)
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To: Quix

*ping*

UFO sign ?


8 posted on 09/22/2010 3:48:10 PM PDT by fieldmarshaldj (~"This is what happens when you find a stranger in the Amber Lamps !"~~)
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To: fieldmarshaldj

Doesn’t sound like it.

thanks


9 posted on 09/22/2010 3:52:37 PM PDT by Quix (PAPAL AGENT DESIGNEE: Resident Filth of non-Roman Catholics; RC AGENT DESIGNATED: "INSANE")
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To: Duke C.

I got the feeling that Mercury is going to be booted out of the planet club just like poor old Neptune or Pluto was a while back


10 posted on 09/22/2010 4:56:31 PM PDT by newbie 10-21-00
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To: Duke C.

Shades of Velikovsky!


11 posted on 09/22/2010 6:26:57 PM PDT by Duke Nukum (I know writers who use subtext and they're all cowards.)
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To: 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...
Note: this topic is from 9/22/201. Thanks Duke C.
I think this a duplicate, but just in case...
 
Catastrophism
 
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12 posted on 05/13/2011 8:21:19 PM PDT by SunkenCiv (Thanks Cincinna for this link -- http://www.friendsofitamar.org)
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To: SunkenCiv
I think this a duplicate, but just in case...

Could be but alls I can recall was another article a while back about Venus showing its tail...

13 posted on 05/13/2011 9:24:27 PM PDT by ForGod'sSake (You have only two choices: SUBMIT or RESIST with everything you've got!!!)
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To: ForGod'sSake

Yup, Venus, Earth, the Moon, Mercury...


14 posted on 05/14/2011 9:54:00 AM PDT by SunkenCiv (Thanks Cincinna for this link -- http://www.friendsofitamar.org)
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To: SunkenCiv

HMPFH! Beginning to look like everybody’s got a tail.


15 posted on 05/14/2011 11:13:00 AM PDT by ForGod'sSake (You have only two choices: SUBMIT or RESIST with everything you've got!!!)
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