IPB

Welcome Guest ( Log In | Register )

36 Pages V  « < 26 27 28 29 30 > »   
Reply to this topicStart new topic
MESSENGER News Thread, news, updates and discussion
antipode
post Mar 11 2012, 12:06 PM
Post #406


Member
***

Group: Members
Posts: 314
Joined: 1-October 06
Member No.: 1206



Is there any indication that these features are more common at the 'heat pole' longitude?

P
Go to the top of the page
 
+Quote Post
Phil Stooke
post Mar 12 2012, 04:35 PM
Post #407


Solar System Cartographer
****

Group: Members
Posts: 10128
Joined: 5-April 05
From: Canada
Member No.: 227



Not yet - only very preliminary results on global distribution have been reported so far, but it will take the full mission's worth of high resolution imaging to get a feel for the real distribution.

Phil Stooke



--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
TheAnt
post Mar 17 2012, 05:07 PM
Post #408


Member
***

Group: Members
Posts: 495
Joined: 12-February 12
Member No.: 6336



QUOTE (tanjent @ Mar 10 2012, 08:46 AM) *
Some of those raised blobs in the crater look like the result of surface tension - something that you might see after a spill of molten metal had solidified.


Yes I noted the similarity also for the crater image. Tin have quite some surface tension and if poured on a plate it can look almost like that. The scale here is different though, what is interesting is that these can be found in various kinds of terrain as ngunn pointed out. I am somewhat inclined to think of this as a result of sublimation not of a single element but a composite.

And thank you Phil Stooke, yes it will take a lot more images, though I understand that Messenger will not imagine any larger part of Mercury in high resolution.
Not that I am complaining, Messenger have revealed quite some interesting facts about Mercury already. smile.gif
Go to the top of the page
 
+Quote Post
stevesliva
post Mar 17 2012, 06:59 PM
Post #409


Senior Member
****

Group: Members
Posts: 1578
Joined: 14-October 05
From: Vermont
Member No.: 530



QUOTE (TheAnt @ Mar 17 2012, 12:07 PM) *
yes it will take a lot more images, though I understand that Messenger will not imagine any larger part of Mercury in high resolution.
Not that I am complaining, Messenger have revealed quite some interesting facts about Mercury already. smile.gif

Not exactly true...

http://messenger.jhuapl.edu/news_room/details.php?id=195
QUOTE
"The eight-hour orbit will provide 50% more low-altitude observation opportunities of Mercury's north polar regions, including permanently shadowed craters," explains MESSENGER Mission Design Lead Jim McAdams of APL. "A one-third reduction in maximum altitude relative to the 12-hour orbit will enable higher-resolution imaging of the southern hemisphere."


I think what's not said there is that it's (I think) still hitting perihermion at the same pole as before, but resolution will improve at both poles.
Go to the top of the page
 
+Quote Post
Steve G
post Apr 2 2012, 04:23 AM
Post #410


Member
***

Group: Members
Posts: 289
Joined: 29-December 05
From: Ottawa, ON
Member No.: 624



This is obviously an April 1st joke the Messenger is pulling on us.

Mercury's moon
Go to the top of the page
 
+Quote Post
Steve G
post Apr 2 2012, 04:25 AM
Post #411


Member
***

Group: Members
Posts: 289
Joined: 29-December 05
From: Ottawa, ON
Member No.: 624



mad.gif I read the full text, yep, not impressed.
Go to the top of the page
 
+Quote Post
Steve G
post Apr 2 2012, 04:28 AM
Post #412


Member
***

Group: Members
Posts: 289
Joined: 29-December 05
From: Ottawa, ON
Member No.: 624



QUOTE (Steve G @ Apr 1 2012, 08:25 PM) *
My first thought it was a low rez image of Gaspra.


Tell me this isn't an April fools joke. I just read the full text . . .
Go to the top of the page
 
+Quote Post
stevesliva
post Apr 2 2012, 04:38 AM
Post #413


Senior Member
****

Group: Members
Posts: 1578
Joined: 14-October 05
From: Vermont
Member No.: 530



I would've appreciated a low-res death star.
Go to the top of the page
 
+Quote Post
Mariner9
post Apr 2 2012, 04:44 AM
Post #414


Member
***

Group: Members
Posts: 220
Joined: 13-October 05
Member No.: 528



I thought it was most ammusing. Particularly the mission name Min-C (play on Max-C for those who don't religously follow Mars Exploration Program)

The science world benefits from a good sense of humor. Thanks guys, it made my day.
Go to the top of the page
 
+Quote Post
Phil Stooke
post Apr 2 2012, 11:04 AM
Post #415


Solar System Cartographer
****

Group: Members
Posts: 10128
Joined: 5-April 05
From: Canada
Member No.: 227



It's Ida.

Maybe not the greatest April Fools joke ever, but not bad. Check out the Google Lunar X Prize website where the part Time Scientists proposed to create a lunar atmosphere so they could parachute to the surface.

Phil


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
MahFL
post Apr 2 2012, 11:37 AM
Post #416


Forum Contributor
****

Group: Members
Posts: 1372
Joined: 8-February 04
From: North East Florida, USA.
Member No.: 11



H.O.A.X. was a bit of a clue too.
Go to the top of the page
 
+Quote Post
Stu
post Apr 2 2012, 01:42 PM
Post #417


The Poet Dude
****

Group: Moderator
Posts: 5551
Joined: 15-March 04
From: Kendal, Cumbria, UK
Member No.: 60



We're quick to criticise scientists who are po-faced and don't engage with the public. I say well done to the MESSENGER people behind this skit; makes space exploration much more human! laugh.gif


--------------------
Go to the top of the page
 
+Quote Post
Pertinax
post Apr 2 2012, 02:30 PM
Post #418


Member
***

Group: Members
Posts: 198
Joined: 2-March 05
From: Richmond, VA USA
Member No.: 181



Great laugh! smile.gif I love the Armageddonish physics of MIN-C along with the final if-all-else-fails face-palm giveaway of the Hermean On-surface Analysis with X-rays mission. Golden.

-- Pertinax
Go to the top of the page
 
+Quote Post
stevesliva
post Apr 17 2012, 04:35 PM
Post #419


Senior Member
****

Group: Members
Posts: 1578
Joined: 14-October 05
From: Vermont
Member No.: 530



http://messenger.jhuapl.edu/news_room/details.php?id=214
QUOTE
This maneuver – which adjusted the orbital period from 11 hours, 36 minutes to 9 hours, 5 minutes – was designed to deplete the remaining oxidizer of the spacecraft’s propulsion system in a final firing of the large bi-propellant thruster. A second maneuver, scheduled for the evening of April 20, will use the spacecraft’s monopropellant system to complete the transition to an 8-hour orbit.


There goes the big engine...
Go to the top of the page
 
+Quote Post
Phil Stooke
post Apr 20 2012, 01:50 PM
Post #420


Solar System Cartographer
****

Group: Members
Posts: 10128
Joined: 5-April 05
From: Canada
Member No.: 227



Today's MESSENGER picture of the day is a pair of craters in the north polar Goethe basin. Here I have enhanced subtle features in the shadows, visible in light reflected off the sunlit northern crater wall. With the raw data much more will be possible. This is being done with Vesta as well, revealing details in the northern latitudes we would not see otherwise.

Phil

Attached Image


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post

36 Pages V  « < 26 27 28 29 30 > » 
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 29th March 2024 - 01:25 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.