NASA: National Aeronautics and Space Administration


Ask an Astrobiologist
"Where would I find an illustration of the shape of the Earth without water? I've tried for years to imagine what it would look like from space."
  1. Special Note


    Ask an Astrobiologist has received nearly a thousand questions about Nibiru and 2012, with more than 200 answers posted. Please read a summary of the answers that have already been posted, use the search feature and read the FAQ’s before submitting questions on these topics.

  1. Question

    What ceramics have the property of emitting infrared rays (wave length) when it was warmed?

    All ceramics and indeed all materials emit infrared rays (heat) when they are warm. There are no ceramics that have any advantage in terms of their infrared emission. If anyone tells you so, or if they make health claims for special ceramics, they are fooling you.

    David Morrison
    NAI Senior Scientist

    March 8, 2005