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Latest Donald Brownlee Stories

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2011-02-13 14:45:00

Stardust NExT must love comets - on Valentine's Day the spacecraft will get up close and personal with its second.

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2006-03-14 00:55:00

Particles from any icy comet that were collected and returned to Earth aboard a NASA science satellite show dozens of minerals that form only in extreme heat -- a finding that complicates theories about how the solar system formed, scientists said on Monday.

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2006-01-19 18:05:00

Pristine comet samples returned this weekend by the Stardust spacecraft after a 2.9-billion-mile (4.7-billion-km) journey wildly exceeded scientists' expectations, project managers said on Thursday.


Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.