On Thursday, Sarah Palin has a chance to restore her image, while Joe Biden must avoid being long-winded or aggressive.
Piloting a hot-air balloon takes strength and skill, but this woman makes it look like a breeze.
Even as doping scandals plague the race, three teams that disavow drugs are making a strong showing.
A record infestation of beetles is turning western Canada's forests from a carbon sink into a CO2 source.
The website grew out of Debbie Tenzer's pledge to make a small gesture of kindness every Monday.