Comments on: So goes the icy comet theory… https://habitablezone.com/2014/06/18/so-goes-the-icy-comet-theory/ Tue, 07 Apr 2026 19:18:10 -0700 hourly 1 http://wordpress.org/?v=3.3.1 By: DanS https://habitablezone.com/2014/06/18/so-goes-the-icy-comet-theory/#comment-31087 DanS Thu, 19 Jun 2014 16:22:58 +0000 https://www.habitablezone.net/?p=45745#comment-31087 If this is true of Earth, and there is really no reason to disbelieve such a logical conclusion, and if H and O are indeed among the most plentiful free elements in the Universe, as has already become a standard theory among astrophysicists the world over, then it goes that all planets, or at least a strong majority of planets, in this same Universe should have a fair, even comparable amount of H2O and H2O2 in their makeup. Ergo, Mars likely is far wetter than anyone ever dreamed -- including the long-laughed-at Percival Lowell. ...Just thinking... If this is true of Earth, and there is really no reason to disbelieve such a logical conclusion, and if H and O are indeed among the most plentiful free elements in the Universe, as has already become a standard theory among astrophysicists the world over, then it goes that all planets, or at least a strong majority of planets, in this same Universe should have a fair, even comparable amount of H2O and H2O2 in their makeup. Ergo, Mars likely is far wetter than anyone ever dreamed — including the long-laughed-at Percival Lowell.

…Just thinking…

]]> By: bowser https://habitablezone.com/2014/06/18/so-goes-the-icy-comet-theory/#comment-31082 bowser Thu, 19 Jun 2014 02:04:02 +0000 https://www.habitablezone.net/?p=45745#comment-31082 I've always thought the comet water theory made some sense. In early times the Oort cloud would have been dispersed throughout the Universe, and a lot of it could have impacted Earth. However, there doesn't seem to be anything yet that excludes another method, too. And comets could have supplied the water this layer needs. I'd say it's not settled yet. I’ve always thought the comet water theory made some sense. In early times the Oort cloud would have been dispersed throughout the Universe, and a lot of it could have impacted Earth.

However, there doesn’t seem to be anything yet that excludes another method, too. And comets could have supplied the water this layer needs.

I’d say it’s not settled yet.

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