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Sun Quiz

  1. The surface temperature of the Sun is approximately

  2. The solar surface emits most of its electromagnetic radiation in the

  3. The temperature of the upper layer of the Sun's atmosphere is

  4. X-ray emission comes mainly from the

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Imagine the Universe! is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

The Imagine Team
Project Leader: Dr. Barbara Mattson
Curator: Meredith Gibb
Responsible NASA Official: Phil Newman
All material on this site has been created and updated between 1997-2014.
This page last updated: Wednesday, 15-Sep-2004 11:44:22 EDT