Life on Mars After All

More than 30 years after NASA's Viking landers found no evidence for organic materials on Mars, scientists say a new experiment on Mars-like soil shows Viking did, in fact, hit pay dirt.

Scientists repeated a key Viking experiment using perchlorate-enhanced soil from Chile's Atacama Desert, which is considered one of the driest and most Mars-like places on Earth, and found telltale fingerprints of combusted organics—the same chemicals Viking scientists dismissed as contaminants from Earth. "Contrary to 30 years of perceived wisdom, Viking did detect organic materials on Mars," planetary scientist Christopher McKay, with NASA's Ames Research Center in California, told Discovery News. "It's like a 30-year-old cold case suddenly solved with new facts."

European wind farms could meet global energy demand, researchers now say

A new study estimated the untapped potential of wind energy across Europe.

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Surprising Science
  • A new report calculated how much electricity Europe could generate if it built onshore wind farms on all of its exploitable land.
  • The results indicated that European onshore wind farms could supply the whole world with electricity from now until 2050.
  • Wind farms come with a few complications, but the researchers noted that their study was meant to highlight the untapped potential of the renewable energy source in Europe.
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First solar roadway in France turned out to be a 'total disaster'

French newspapers report that the trial hasn't lived up to expectations.

Image source: Charly Triballeau / AFP / Getty Images
Technology & Innovation
  • The French government initially invested in a rural solar roadway in 2016.
  • French newspapers report that the trial hasn't lived up to expectations.
  • Solar panel "paved" roadways are proving to be inefficient and too expensive.
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New vaccine (for cats) nixes allergic reactions for humans

You want one. Now you may be able to survive one.


Photo credit: Jie Zhao
/ Getty contributor
Technology & Innovation
  • Cats live in a quarter of Western households.
  • Allergies to them are common and can be dangerous.
  • A new approach targets the primary trouble-causing allergen.
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