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Showing blog posts tagged with Science Bulletins

Mt. Etna

Predicting Mt. Etna's Eruptions

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Rising nearly 11,000 feet above sea level on the Mediterranean island of Sicily, Mt. Etna is one of the largest, most active volcanoes in the world, producing at least one eruption a year. The volcano's first lava flows of 2013 came this week, on February 19 and 20. Find out how researchers monitor and forecast the location and time of Mt. Etna's activity in this Science Bulletins video. 

Tags: Science Bulletins

Harzardous Asteroids

How Do Researchers Track Near-Earth Asteroids?

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Later today, an asteroid designated 2012 DA14 will pass just 17,200 miles over Earth’s surface. Although this 150-foot space rock will slip harmlessly by, researchers estimate there are nearly 500,000 near-Earth asteroids. So far, they’ve tracked the orbit of 9,600. How do researchers track asteroids, anyway? A Science Bulletins video explains more about the process, and more about the odds of an asteroid collision with Earth.

Tags: Meteorites, Science Bulletins

SEM Scanning Electron Microscope Goblin Spider

Seeking Out Spiders

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The Museum is home to the largest collection of spiders in the world, one that is still growing through the fieldwork of scientists such as Norman Platnick, Curator Emeritus in the Division of Invertebrate Zoology. Platnick, who has discovered and described more than 1,600 new spider species, says there are many more to find.

“Collections are the only way we can document the plants and animals with which we share this planet,” says Platnick. “For groups that are as poorly known as spiders, there are many areas in the world where they have not been collected at all.”

One of his recent collecting efforts, in late 2010, took Platnick and his team on a month-long expedition into the cloud forests of northeastern Ecuador. Science Bulletins, the Museum’s multimedia program that covers current science, followed the researchers as they worked day and night seeking out spiders from the forest floor to the high canopy.

Tags: Science Bulletins, Spiders

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