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Nuevos hallazgos del Mars Reconnaissance Orbiter (MRO) de la NASA, proporcionan la evidencia más fuerte hasta ahora de que agua líquida fluye en forma intermitente actualmente en Marte.

Mediante el uso de un espectrómetro de imágenes del MRO, los investigadores detectaron rastros de minerales hidratados en las laderas donde rayas misteriosas son vistas en el planeta rojo. Estas vetas oscuras parecen ir y venir con el tiempo, se oscurecen y parecen fluir por laderas empinadas durante las estaciones cálidas, y luego se desvanecen en las estaciones más frías. Aparecen en varios lugares en Marte cuando las temperaturas están por encima de los -10 grados Fahrenheit (menos 23 grados Celsius), y desaparecen en épocas más frías.

Levels of "background ozone" -- ozone pollution present in a region but not originating from local, human-produced sources -- are high enough in Northern California and Nevada that they leave little room for local ozone production under proposed stricter U.S. ground-level ozone standards, finds a new NASA-led study.

Out of the 250 million cars and trucks on U.S. roads, the impending recall at Volkswagen will involve just a half-million of them. But VW's emissions cheating scandal is receiving outsize attention because many of the company's customers feel duped. Now those customers are weighing what it will take to make them feel whole again.

David Chien of Williston, Vt., was looking for a bigger, fuel-efficient car that could power its way through Northeastern snow. He says the 2013 Jetta SportWagen he bought "seemed to check all the boxes."

Can portabella mushrooms stop cell phone batteries from degrading over time?

Researchers at the University of California, Riverside Bourns College of Engineering think so.

UNSW Australia researchers have used new water-tracing technology in the Sydney Basin for the first time to determine how groundwater moves in the different layers of rock below the surface.

The study provides a baseline against which any future impacts on groundwater from mining operations, groundwater abstraction or climate change can be assessed.