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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
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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