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  Beauty & mystery in science.

The bright stars in the lower right hand corner are Hodge 301, located in the Tarantula Nebula within the Large Magellanic Cloud. These bright exploding stars send matter hurling through space at speeds up to 200 miles per second. This matter causes the sheeting seen in the upper left of the image. Credit: You-Hua Chu [University of Illinois], Eva K. Grebel [University of Washington], the Hubble Heritage Team [AURA/STScI/NASA].


  Science tidbit

NIST atomic clock.
What is an Atomic Clock?

The watches we wear on our wrists or the clocks we put on our walls are not atomic clocks. There are not all that many true atomic clocks - and they tend to be rather large and expensive. So, unless it looks something like the picture alongside from the National Institute for Standards and Technology [NIST], it is not a state-of-the-art atomic clock.

Learn about an atomic clock.




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