Comments on: Frost-Covered Asteroid Suggests Extraterrestrial Origin for Earth's Oceans http://blogs.discovermagazine.com/80beats/2010/04/29/frost-covered-asteroid-suggests-extraterrestrial-origin-for-earths-oceans/ Mon, 22 Apr 2013 21:34:00 +0000 hourly 1 http://wordpress.org/?v=3.4.2 By: Philip A.Morrissette http://blogs.discovermagazine.com/80beats/2010/04/29/frost-covered-asteroid-suggests-extraterrestrial-origin-for-earths-oceans/#comment-18526 Philip A.Morrissette Sun, 02 May 2010 15:46:44 +0000 http://blogs.discovermagazine.com/80beats/?p=14195#comment-18526 This is no surprise to me. Read "Worlds in Collision" and "Earth in Upheaval" by Immanuel Velikovsky and see where in 1950 he predicted many of these things. You will find it fascinating. This is no surprise to me. Read “Worlds in Collision” and “Earth in Upheaval” by Immanuel Velikovsky and see where in 1950 he predicted many of these things. You will find it fascinating.

]]> By: Eliza Strickland http://blogs.discovermagazine.com/80beats/2010/04/29/frost-covered-asteroid-suggests-extraterrestrial-origin-for-earths-oceans/#comment-18525 Eliza Strickland Fri, 30 Apr 2010 14:39:31 +0000 http://blogs.discovermagazine.com/80beats/?p=14195#comment-18525 Brian Schmidt: Thanks for catching that. I'll make the change. -- Eliza, online news editor Brian Schmidt: Thanks for catching that. I’ll make the change.

– Eliza, online news editor

]]> By: m http://blogs.discovermagazine.com/80beats/2010/04/29/frost-covered-asteroid-suggests-extraterrestrial-origin-for-earths-oceans/#comment-18524 m Fri, 30 Apr 2010 12:18:40 +0000 http://blogs.discovermagazine.com/80beats/?p=14195#comment-18524 hmmmm... how does the ice stay on the surface of the asteroid for them to see it? It has no atmosphere...and very little gravity. any water that seeps to the surface would surely sublimate right away. and how could an asteroid that small have extensive resevoirs of water? I mean...after millions and millions of years, surely any water it has retained would have seeped through and into space by now. it's interesting....but there's something bugging me about this that I cant put my finger on. Part of me thinks its not water they are seeing. Then again....haven't had my coffee yet. hmmmm…

how does the ice stay on the surface of the asteroid for them to see it? It has no atmosphere…and very little gravity.

any water that seeps to the surface would surely sublimate right away.

and how could an asteroid that small have extensive resevoirs of water? I mean…after millions and millions of years, surely any water it has retained would have seeped through and into space by now.

it’s interesting….but there’s something bugging me about this that I cant put my finger on. Part of me thinks its not water they are seeing.

Then again….haven’t had my coffee yet.

]]> By: Brian Schmidt http://blogs.discovermagazine.com/80beats/2010/04/29/frost-covered-asteroid-suggests-extraterrestrial-origin-for-earths-oceans/#comment-18523 Brian Schmidt Thu, 29 Apr 2010 23:15:02 +0000 http://blogs.discovermagazine.com/80beats/?p=14195#comment-18523 NEAR Shoemaker was the first to land on an asteroid: http://en.wikipedia.org/wiki/NEAR#Orbits_and_landing Habayusa was the first to land and take off. NEAR Shoemaker was the first to land on an asteroid:

http://en.wikipedia.org/wiki/NEAR#Orbits_and_landing

Habayusa was the first to land and take off.

]]> By: Cory http://blogs.discovermagazine.com/80beats/2010/04/29/frost-covered-asteroid-suggests-extraterrestrial-origin-for-earths-oceans/#comment-18522 Cory Thu, 29 Apr 2010 22:46:56 +0000 http://blogs.discovermagazine.com/80beats/?p=14195#comment-18522 Well, the discussion is mostly upon WHEN the water came. If it came before the Earth "formed" as an entity, and was a part of its structure doing its early development, it is not "extraterrestrial". If it came in bombardments after the Earth already was essentially formed, the water is indeed extraterrestrial. Well, the discussion is mostly upon WHEN the water came. If it came before the Earth “formed” as an entity, and was a part of its structure doing its early development, it is not “extraterrestrial”. If it came in bombardments after the Earth already was essentially formed, the water is indeed extraterrestrial.

]]> By: nick http://blogs.discovermagazine.com/80beats/2010/04/29/frost-covered-asteroid-suggests-extraterrestrial-origin-for-earths-oceans/#comment-18521 nick Thu, 29 Apr 2010 17:31:18 +0000 http://blogs.discovermagazine.com/80beats/?p=14195#comment-18521 It's kinda funny that this sorta thing is even up for debate. We already know that every atom on earth was birthed in the heart of a star. As Sagan liked to say, "We are made of star stuff." Everything here except the elements we've made via fusion or fission is of extraterrestrial origin, and even the things we've made used extraterrestrial components. The only real question is "how recently extraterrestrial are they?" It’s kinda funny that this sorta thing is even up for debate. We already know that every atom on earth was birthed in the heart of a star. As Sagan liked to say, “We are made of star stuff.” Everything here except the elements we’ve made via fusion or fission is of extraterrestrial origin, and even the things we’ve made used extraterrestrial components. The only real question is “how recently extraterrestrial are they?”

]]> By: bigjohn756 http://blogs.discovermagazine.com/80beats/2010/04/29/frost-covered-asteroid-suggests-extraterrestrial-origin-for-earths-oceans/#comment-18520 bigjohn756 Thu, 29 Apr 2010 16:46:27 +0000 http://blogs.discovermagazine.com/80beats/?p=14195#comment-18520 Well, naming these icy bodies is easy. Just call them iceteroids. Well, naming these icy bodies is easy. Just call them iceteroids.

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