"A solar-powered aircraft successfully completed the first fuel-free flight around the world on Tuesday, returning to Abu Dhabi after an epic 16-month voyage that demonstrated the potential of renewable energy.
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"The scientific detective work that forced Volkswagen into a $15 billion settlement began with a handful of researchers armed with just $70,000."

"The aftermath of the cyberattack in Ukraine on Dec. 23, 2015, produced two unexpected lessons that U.S. grid operators have started to take to heart."

"The House of Representatives voted on Thursday to require the labeling of foods that contain genetically engineered ingredients, clearing the bill’s final obstacle before it heads to the White House, where President Obama is expected to sign it into law."

"An airplane powered by energy from the sun arrived on Wednesday in Egypt, the penultimate stop on the first fuel-free flight around the globe."

"Products made possible through gene-editing have landed on grocery shelves. Whether they’ll stay there is up to shoppers wary of technological tinkering."

"An experimental solar-powered airplane has left Spain for Egypt in the penultimate leg of its globe-circling voyage."

"A Mississippi project, a centerpiece of President Obama’s climate plan, has been plagued by problems that managers tried to conceal, and by cost overruns and questions of who will pay."

"Just five months after the Zika virus was declared a global public health emergency, a scientific team’s feverish efforts to create a vaccine against the viral threat have borne promising fruit: With a single shot of either of two different types of vaccine, experimental mice gained near-total immunity to Zika for at least two months."

"Just a week before a Vermont law kicks in requiring labels on food containing genetically modified ingredients, U.S. Senate agriculture leaders announced a deal Thursday that takes the power out of states' hands — and sets a mandatory national system for GM disclosures on food products."