Jump to content


Photo

Meteorite from Mercury?

  • Please log in to reply
9 replies to this topic

#1 Kaelin

Kaelin

    Ranger 4

  • -----
  • Posts: 300
  • Joined: 16 Nov 2009
  • Loc: Midwest Great Lakes

Posted 31 March 2013 - 10:26 AM

It came from outer space:

http://news.yahoo.co...-145455980.html

#2 StarWars

StarWars

    Mr. Postmaster Man

  • *****
  • Posts: 26483
  • Joined: 26 Nov 2003
  • Loc: At the Gym >Spudtastic<

Posted 31 March 2013 - 11:19 AM




Interesting story...There seems to be a lot of speculation about the origin.. :o

Cut the rock in half and test the material for basic elements... :D

#3 ILikePluto

ILikePluto

    Explorer 1

  • -----
  • Posts: 88
  • Joined: 17 Feb 2009

Posted 31 March 2013 - 06:27 PM

Here's a story from 2008 that predicts there should be Mercurian meteorites on Earth: Meteorites from Mercury? by Ken Croswell

#4 Glassthrower

Glassthrower

    Vendor - Galactic Stone & Ironworks

  • *****
  • Vendors
  • Posts: 18345
  • Joined: 07 Apr 2005
  • Loc: Oort Cloud 9

Posted 01 April 2013 - 10:40 AM

The jury is out. The meteorite is interesting, but there is no proof that it comes from Mercury. It fits some of the criteria we would expect from a Mercurian meteorite, that is all. The press ran with it from there.

Best regards,

MikeG

#5 Mister T

Mister T

    Apollo

  • -----
  • Posts: 1312
  • Joined: 01 Feb 2008
  • Loc: Upstate NY

Posted 01 April 2013 - 04:39 PM

Sometimes I think the Science community ought to just STOP releasing new findings or theories to the media.... :foreheadslap: :foreheadslap: :foreheadslap:

#6 Glassthrower

Glassthrower

    Vendor - Galactic Stone & Ironworks

  • *****
  • Vendors
  • Posts: 18345
  • Joined: 07 Apr 2005
  • Loc: Oort Cloud 9

Posted 01 April 2013 - 09:45 PM

If one made a list of possible candidates for Mercury meteorites, this meteorite would be near the top of the list. But, there is still a good deal of uncertainty when considering the geology of Mercurian rocks. We have no first-hand samples to compare, like the Apollo moon rocks brought back by astronauts from the Moon. And the decades-old data we have from US and Russian landers on Mercury don't give us the kind of information we need to make a definitive judgement on a suspected Mercury meteorite. So, until we have a sample-return mission to Mercury, or better data on the nature of Mercury rocks (and gases), then we'll have to wait and just theorize what such a meteorite would be like. This meteorite fits some of the theorized criteria, but that is all.

It is a really unusual and interesting meteorite regardless of where it originates from. I've seen and handled thousands of meteorites and meteorite fragments, and I have never seen anything like this green one. :)

#7 llanitedave

llanitedave

    Humble Megalomaniac

  • *****
  • Posts: 22195
  • Joined: 25 Sep 2005
  • Loc: Amargosa Valley, NV, USA

Posted 01 April 2013 - 10:16 PM

Are we absolutely sure this is a meteorite at all?

#8 Glassthrower

Glassthrower

    Vendor - Galactic Stone & Ironworks

  • *****
  • Vendors
  • Posts: 18345
  • Joined: 07 Apr 2005
  • Loc: Oort Cloud 9

Posted 01 April 2013 - 11:08 PM

Yeah, it's a meteorite. It was analyzed by a reputable scientist and Stefan Ralew is a very experienced dealer and collector. It's not like the Sri Lanka panspermia "meteorite" that keeps making the news.

Meteorites are a hot science news item now and the press wires and blogs are jumping on the bandwagon, circulating and recirculating these sensational stories.

It's entirely possible this meteorite is from Mercury, or that Mercury meteorites might already be sitting in a collection cabinet somewhere, misidentified at Earth rocks or another type of meteorite. But, we lack the ability to make a definitive judgement on that origin, regardless of what the media implies.

#9 ILikePluto

ILikePluto

    Explorer 1

  • -----
  • Posts: 88
  • Joined: 17 Feb 2009

Posted 02 April 2013 - 11:35 AM

Russia has sent no spacecraft to Mercury, and no one has sent a lander there. NASA has sent two spacecraft: Mariner 10, which flew past the planet three times during the 1970s; and Messenger, which is now orbiting the planet.

#10 Glassthrower

Glassthrower

    Vendor - Galactic Stone & Ironworks

  • *****
  • Vendors
  • Posts: 18345
  • Joined: 07 Apr 2005
  • Loc: Oort Cloud 9

Posted 02 April 2013 - 02:27 PM

Nevermind, I was thinking of Venus. :foreheadslap:






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics