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Latest mare Tyrrhenum quadrangle Stories

c6b69fbba6ad94fdfec6cc2a469ec7181
2010-08-27 06:55:00

Orcus Patera is an enigmatic elliptical depression near Mars's equator, in the eastern hemisphere of the planet. Located between the volcanoes of Elysium Mons and Olympus Mons, its formation remains a mystery. Often overlooked, this well-defined depression extends approximately 380 km by 140 km in a NNE"“SSW direction. It has a rim that rises up to 1800 m above the surrounding plains, while the floor of the depression lies 400"“600 m below the surroundings.  The term...


Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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