Discussion and news about planets, exoplanets, and astrobiology
Since quite early in the history of the discovery of planets around other stars it’s been apparent that the likelihood of certain types of planets around a star is related to the abundance of heavy elements in that system...
In about a month’s time, the European Space Agency’s (ESA) Venus Express spacecraft will adjust its orbit and dip into the outer venusian atmosphere...
Live streaming video by Ustream It doesn’t get much better than this (well, of course being in space might be better, albeit colder).
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.
Since the Chelyabinsk event in early 2013, when a brilliant meteor fireball streaked across Russian skies and exploded with the energy of thirty Hiroshima bombs, humans have paid slightly more attention to the potential danger of asteroids than before...
What is our cosmic significance? Does it even make sense to ask a question like that? If you happen to find yourself in Cleveland, Ohio this coming Thursday evening, and stop by the Cleveland Museum of Natural History at 8pm you can catch me talking about this...
Fatigue, that’s what. As a particularly frigid winter recedes across the north and east of the United States (we’ve become accustomed to milder weather in past years), the abuse suffered by asphalt roads is becoming apparent...
There has been a lot of discussion recently about the evidence that we are currently within a period of mass extinction, the kind of event that will show up in the fossil record a few million years from now as a clear discontinuity, a radical change in the diversity of life on the planet...
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 [...]..
A recently published study of a 30-pound martian meteorite found in Antarctica suggests the presence of indigenous carbon-rich material, ancient water erosion, and a number of tiny structures that resemble the sort of features that we see rock-eating microbes leaving in basaltic glasses here on Earth...
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