NASA Earth Science

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>"Mission To Planet Earth". NASA. 30 October 1997. Retrieved 10 November 2020.  This article incorporates text from this source, which is in the public domain. <a href="https://www.hq.nasa.gov/office/nsp/mtpe.htm" target="_blank">https://www.hq.nasa.gov/office/nsp/mtpe.htm</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>"Earth Science Enterprise (ESE)". NASA. Retrieved 10 November 2020.  This article incorporates text from this source, which is in the public domain. <a href="https://earthobservatory.nasa.gov/glossary/e" target="_blank">https://earthobservatory.nasa.gov/glossary/e</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>"History of Astrobiology". NASA. Retrieved 10 November 2020.  This article incorporates text from this source, which is in the public domain. <a href="https://astrobiology.nasa.gov/about/history-of-astrobiology/" target="_blank">https://astrobiology.nasa.gov/about/history-of-astrobiology/</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
</ol>

NASA Earth Science open-in-new

NASA Earth Science