Geo Visitors Map

  Beauty & mystery in science.

This red supergiant star [V838] monocerotis is located about 20,000 light-years from Earth. A burst of light in a huge dust cloud caused light echos that were seen for three years. Credit: NASA, ESA and H.E. Bond [STScI].

  Science tidbit

Plasma ball.
Plasma Ball Physics

A plasma ball is fun, but plasmas are an important part of our physical universe. From lightning to stars to the Northern Lights, plasmas are all around us.

Read about the basics of plasmas.

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