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MESSENGER News Thread, news, updates and discussion
Greg Hullender
post Mar 5 2009, 04:43 PM
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It's up for me. Nothing new since February 9. Still 208 days to the last flyby and 743 days to MOI.

We're not there yet. :-)

--Greg
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algorimancer
post Mar 5 2009, 07:11 PM
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QUOTE (Paolo @ Feb 20 2009, 02:28 PM) *
...Vucanoids are unlikely to exist to this day

It appears that, while largely depleted, they suggest that 300-900 bodies with diameters exceeding 1 km are likely to remain. My own thought is is that, no matter what theory predicts, it is still worth looking -- at the very least you might validate the theory, or learn something interesting by invalidating it. Plus there's plenty of migration of asteroids out of the main belt in both directions, so you'd want to look closely at any detected objects to ascertain just where it originated.
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MarkG
post Mar 5 2009, 08:11 PM
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Yes, the Messenger site is now back up, but it was down for a bit (the New Horizons JHUAPL site was also down at the same time).

Vulcanoids -- yes, the Vokrouhlicky article implies that there could still be a remnant population, but I think the erosive effect of high-energy collisions would bring the number down.

What is the limiting magnitude and field of view of the wide-angle camera? They are expecting to be able to find a 15KM object, but given what assumptions?
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Littlebit
post Apr 30 2009, 01:26 PM
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NASA TO HOLD BRIEFING TO DISCUSS NEW FINDINGS ABOUT PLANET MERCURY

WASHINGTON -- NASA will host a media teleconference on Thursday, April 30, at 2 p.m. EDT to discuss new data and findings revealed by the Mercury Surface, Space Environment, Geochemistry, and Ranging spacecraft known as MESSENGER.
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Guest_Enceladus75_*
post Apr 30 2009, 03:20 PM
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Guests






I wouldn't be at all surprised if some major new findings with respect to the role of volcanism on Mercury's surface and perhaps some new insights into the planet's interior will form the highlight of this press briefing. Should be interesting.
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MarsIsImportant
post Aug 31 2009, 12:30 AM
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I cannot wait for the main orbital mission. Given the relatively new findings concerning the magnetosphere and the exosphere of Mercury, the dynamics associated with the terminator should be interesting.

If heavy metals are being vaporized into the atmosphere, are they condensing out near the terminator? How active is this process? Over billions of years, could this create significant changes in surface texture? I'm sure there is little similarity to any other processes occurring on other planets in our solar system. The big questions are: how important is it actually on Mercury; and whether it had greater significance in the distant past?
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Greg Hullender
post Aug 31 2009, 02:09 PM
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QUOTE (MarsIsImportant @ Aug 30 2009, 05:30 PM) *
I cannot wait for the main orbital mission.

Ten orbits down (almost); five more (and change) to go. Luckily the next five orbits will just be 105 days each. And at least we get another taste in just 29 days.
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Guest_Sunspot_*
post Jan 24 2010, 12:49 AM
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Guests






Coming up on 2000 days since launch !!

http://messenger.jhuapl.edu/
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Greg Hullender
post Jan 24 2010, 03:52 AM
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Right at the same time NH is 2000 days away from Pluto. These "fire and ice" parallels amuse me to no end!

--Greg
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mps
post Nov 14 2011, 08:35 PM
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MESSENGER mission has been extended another year
http://twitter.com/#!/MESSENGER2011/st...369226310955008

EDIT: More about the mission extension here: http://messenger.jhuapl.edu/news_room/details.php?id=188
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Marz
post Nov 14 2011, 09:19 PM
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QUOTE (mps @ Nov 14 2011, 02:35 PM) *
MESSENGER mission has been extended another year
http://twitter.com/#!/MESSENGER2011/st...369226310955008


Great news!
I suppose the extension is until March 2013 now, since 3/2012 was the original timeframe?
If there is ~40kg of fuel remaining on board; what is the longest possible observation timeframe?

side note: Astronomy magazine features Mercury in its December issue.
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Phil Stooke
post Nov 15 2011, 04:53 PM
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Ina on steroids!

Phil



http://messenger.jhuapl.edu/gallery/scienc...mp;image_id=693


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... 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)
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MarcF
post Nov 28 2011, 02:49 PM
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An amazing perspective of Mercury from Messenger !!!!
http://messenger.jhuapl.edu/gallery/scienc...Limb_mosaic.png
Best regards,
Marc.
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Phil Stooke
post Nov 30 2011, 03:05 PM
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The last two daily images have been nice hemispheric views. I hope we'll get all four (or even six) orthogonal views.

Phil



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... 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)
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MarcF
post Dec 1 2011, 03:11 PM
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The "Caloris" hemisphere :
http://messenger.jhuapl.edu/gallery/scienc...ortho_0_180.png
Just great
Marc.
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