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Space News Archive - April 24, 2010

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Taking advantage of NASA's 'Operation Ice Bridge' campaign, measurements of Arctic sea ice have been made from an aircraft flying directly under CryoSat-2's orbital path.

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The start-up company Star2Earth, reared in the ESA Business Incubation Center in the Netherlands, will improve electricity production from a hydroelectric plant on Lake Laja in Chile by using navigation satellite signals to measure water levels and wave heights.

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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