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Film, Video The Case of the Missing Martian Atmosphere

Transcript: TEXT

About this Item

Title

  • The Case of the Missing Martian Atmosphere

Summary

  • Jared Espley spoke about climate change on Mars and the MAVEN mission. Several types of evidence from past Mars missions leads us to believe that Mars used to be much different from the dry, cold place we find today. Ancient gullies and canyons look as if they were carved by flowing water, minerals that can only be made in standing water have been found, and ancient volcanoes of many sizes litter the surface. Clearly, the atmosphere had to have been thicker and possibly warmer to support so much liquid water on the surface. What happened? Because Mars lacks a planetary-sized magnetic field, the solar wind is able to gradually erode its upper atmosphere. Could a whole atmosphere's worth of erosion have taken place? MAVEN which was launched on November 18, 2013 and is set to arrive September 21, 2014 should help us explore this possibility.

Names

  • Library of Congress
  • Library of Congress. Science, Technology, and Business Division, sponsoring body

Created / Published

  • Washington, D.C. : Library of Congress, 2014-09-18.

Headings

  • -  Education
  • -  Science, Technology

Notes

  • -  Classification: Education.
  • -  Classification: Science.
  • -  Classification: Technology.
  • -  Jared Espley.
  • -  Recorded on 2014-09-18.
  • -  Kids, Families.
  • -  Researchers.
  • -  Teachers.

Medium

  • 1 online resource

Digital Id

Library of Congress Control Number

  • 2021689523

Online Format

  • video
  • image
  • online text

Additional Metadata Formats

Rights & Access

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Credit Line: Library of Congress

Cite This Item

Citations are generated automatically from bibliographic data as a convenience, and may not be complete or accurate.

Chicago citation style:

Library Of Congress, and Technology Library Of Congress. Science. The Case of the Missing Martian Atmosphere. Washington, D.C.: Library of Congress, -09-18, 2014. Video. https://www.loc.gov/item/2021689523/.

APA citation style:

Library Of Congress & Library Of Congress. Science, T. (2014) The Case of the Missing Martian Atmosphere. Washington, D.C.: Library of Congress, -09-18. [Video] Retrieved from the Library of Congress, https://www.loc.gov/item/2021689523/.

MLA citation style:

Library Of Congress, and Technology Library Of Congress. Science. The Case of the Missing Martian Atmosphere. Washington, D.C.: Library of Congress, -09-18, 2014. Video. Retrieved from the Library of Congress, <www.loc.gov/item/2021689523/>.