They've been everywhere this week: dire warnings about threats posed by across-the-board federal spending cuts.
Unless Congress acts, the cuts are due to take effect a week from Friday. The administration is trying to drive home the ways that could affect you.
For example, Transportation Secretary Ray LaHood warned Friday that air traffic controllers will have to take unpaid days off beginning in April. Fewer controllers on the job could mean airport delays, and some airlines may decide to cancel flights.
Since the drubbing that Superstorm Sandy gave the Northeast in November, there's a new sense of urgency in U.S. coastal cities. Even though scientists can't predict the next big hurricane, they're confident that a warmer climate is likely to make Atlantic storms bigger and cause more flooding.
Last year, Seattle became one of the nation's first cities to buy unmanned drones for use by the police department. Public reaction was less "Gee-whiz" than "What the heck?"
The phrase "unmanned drones" typically conjures images of places like Afghanistan. But the Federal Aviation Administration says it wants to start testing the civilian use of aerial drones here in the U.S. and has already issued special permits to a few police departments interested in trying them out.
Researchers who studied pieces of the meteor collected near Lake Cherbarkul say it was a common chondrite meteor. The largest of the 53 fragments was one centimeter in diameter. Photo provided by the Urals Federal University Press Service.
The meteor that caused at least 1,000 injuries in Russia after a startling and powerful daytime explosion one week ago has been identified as a chondrite. Russian scientists who analyzed fragments of the meteor, whose large size and well-documented impact made it a rarity, say that its composition makes it the most common type of meteor we encounter here on Earth.