Electronic noses sniff out volatile organic compounds

Volatile organic compounds (VOCs) are chemicals emitted as gases that can have adverse health effects. They are often found in paints, pharmaceuticals, and refrigerants, among other common products, but they can also act ...

Chasms on the flanks of a Martian volcano

Mars has some of the most impressive volcanoes in the solar system. ESA's Mars Express has now imaged the pitted, fissured flank of the planet's second-tallest: Ascraeus Mons.

Extracting the best flavor from coffee

Espresso coffee is brewed by first grinding roasted coffee beans into grains. Hot water then forces its way through a bed of coffee grains at high pressure, and the soluble content of the coffee grains dissolves into the ...

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