News tagged with mass extinction

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Superior Super Earths

Super Earths are named for their size, but these planets - which range from about 2 to 10 Earth masses - could be superior to the Earth when it comes to sustaining life. They could also provide an answer to ...

dateNov 30, 2009 in Space Exploration
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Killer algae a key player in mass extinctions

Algae, not asteroids, were the key to the end of the dinosaurs, say two Clemson University researchers. Geologist James W. Castle and ecotoxicologist John H. Rodgers have published findings that toxin producing ...

dateOct 19, 2009 in Earth Sciences
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