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Posts Tagged "search for life"

Life, Unbounded

Exomoons Can Spoof Exoplanet Biosignatures

earth-titan.001

Astronomers hope that one day soon we’ll obtain a spectrum of light that might tell us whether or not an Earth-sized exoplanet harbors life. This spectrum could be of starlight filtered through the planetary atmosphere, or of reflected and emitted radiation. In either case it would probe the chemical composition of an alien world. The [...]

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Life, Unbounded

This Is What We Don’t Know About The Universe

dont panic.001

In recent days I’ve had some interesting conversations. There’s a giddiness going around, related to an outpouring of science love – the kind you get from President Obama introducing TV science shows, the kind that has wonderful visuals, but is, well, a wee bit simplistic (a sin that none of us could ever, ever be [...]

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Life, Unbounded

Something’s Cooking on Mars

Drilled out martian mudstone...(Credit:NASA/JPL-Caltech/MSSS)

What do you get when you cook buried martian mudstone in your oven? The answer appears to be the kind of gases you’d expect if you cooked organic material here on Earth. A couple of weeks ago the latest results from the Curiosity rover’s investigations at Yellowknife Bay in the Gale Crater structure on Mars [...]

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Observations

Earth-Like Planets Fill the Galaxy

Kepler telescope

LONG BEACH, Calif.—Look up on a starry night. Almost every one of those tiny pricks of light is home to an unseen world. Our Milky Way galaxy is full of planets—100 billion or more—and many of those planets are Earth-like rocks (although our solar system still appears to be an oddball). Such are the major [...]

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