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Jorge Salazar

Dave Pieri on keeping planes safe by watching volcanoes from space

David Pieri said, “A person in the U.S. or Europe won’t be hit with a volcanic blast. That’s almost inconceivable. But they might face a threat when they fly.”

Russian scientists penetrated miles of Antarctic ice to reach Lake Vostok. (Russian Geographical Society)

Chuck Kennicutt: Penetrating miles of Antarctic ice in search of alien-like life

Russian scientists have penetrated miles of Antarctic ice to analyze waters for alien-like life. EarthSky spoke with oceanographer Chuck Kennicutt.

John Grotzinger: Mars Curiosity rover will touch down August 5

NASA’s Curiosity rover will attempt a daring landing on Mars on August 5-6, 2012. EarthSky spoke with the mission’s chief scientist.

Alan Stern on the moons of Pluto

Fans of Pluto celebrated the discovery of its fifth moon in July of 2012. Astronomer Alan Stern was on the discovery team that found Pluto’s new moon.

Joseph DeSimone on being an inventor

Joseph DeSimone: “To be proactive in ways that grow the economy, create jobs and improve the well-being of society – that’s a great opportunity.”

Luciano Iess: Liquid ocean on Saturn’s moon Titan

Cassini spacecraft observation of “tides” in the solid surface of Titan suggest that this large moon of the planet Saturn has an ocean below ground.

Frank Hill: Future sunspot drop, but no new ice age

Frank Hill told EarthSky that — while his team did suggest a drop in solar activity beginning around 2019 — they did not suggest Earth would cool as a result.

Jay Harman froze a whirlpool to clean water or air

Nature likes spirals, from galaxies to shells. Jay Harmon used a natural spiral to design a “frozen whirlpool” for keeping water tanks clean without chemicals.

Peter deMenocal: Climate change might drive human evolution

How climate change might have driven turning points in human evolution.

Pamela Silver: New fuels from extreme deep sea life

Pamela Silver is exploring the use of deep-ocean extremophiles to create new biofuels. She described the bacteria she works with as being “like little batteries.”