a thoughtful web.
Good ideas and conversation. No ads, no tracking.   Login or Take a Tour!
comment
user-inactivated  ·  3636 days ago  ·  link  ·    ·  parent  ·  post: Rosetta discovers water on comet 67p like nothing on Earth

Indeed. The sort of point that ought to have been raised by the Guardian. But still it raises the question, why do (any) comets have heavy water on them as opposed to normal water? Answers could be very interesting.