Space Travel
19, May, 2012

Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.

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Term Definition
Engraved Hourglass Hourglass Nebula
Descriptive popular name for a planetary nebula with the catalogue designation MyCn18. Public attention was drawn to its spectacular form by a Hubble Space Telescope image published in 1996.