"A solar-powered plane nearing the close of a cross-continental journey landed at Dulles International Airport outside the nation’s capital early Sunday, only one short leg to New York remaining on a voyage that opened in May."

"WASHINGTON -- The exact location of the anti-poaching operation is secret, as is the number of rangers who will be on duty. Also confidential: where the drones will fly as they search out poachers intent on slaying rhinos for their horns – one killed every 11 hours in South Africa alone."

"A key satellite positioned to track severe weather in the eastern United States has failed, just as the 2013 Atlantic hurricane season is about to start."

"The National Research Council, which gave the country canola and the atomic clock, will now be taking its scientific cues from Canadian industry as part of a makeover of the country’s flagship research labs."

"By taking sophisticated instrument readings of the snow depth and reflected sunlight, researchers hope to improve the accuracy of runoff forecasts."

Pilots will soon launch an effort to fly a solar-powered airplane across the United States.

"The first crossing of the United States by a solar-powered plane is expected to start in just over a month, its creators said on Thursday, as they make final preparations for an attempt two years from now at the first round-the-world flight without any fuel."