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2010-07-08 06:55:00

We've Got Wheels! Six of them! And these wheels aren't meant for the concrete roadways, bustling freeways, or sleepy highways"”they're destined for off-roading on Mars. The Curiosity rover team just installed six shiny aluminum wheels on the rover, giving the rover its "legs." Unlike previous missions that used air bags for landing on the Martian surface, Curiosity is touching down wheels first! The rover, which is about the size of an SUV, has wheels that are 50 centimeters (20 inches)...


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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