General News Archive - November 06, 2007
With the mission finally coming to a close, Discovery's commander acknowledged Tuesday she was "extremely concerned" about the safety of the spacewalker who went out to fix the space station's ripped solar wing.
Word of the Day
- A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.