NASA used some 36,000 'selfies' sent in honor of Earth Day to create a composite image of the Earth. It's a pretty cool trick, but we've yet to see if the US space agency's PR efforts can conjure up more funding and public support.
Memorial Day weekend marks the start of the summer travel season. Looks like the 2014 holiday is going to be a doozy, with about 1 in 10 Americans planning to get out of town.
Las Vegas and Cincinnati, withdrawing their bids, won't play host to the 2016 Republican National Convention. Four cities remain in the running, all in the nation's midsection.
Billionaire Tom Steyer has pledged $50m. to NextGen Climate Action. In a bid to counter the Koch brothers, the super PAC is targeting Republicans who deny human-caused climate change.