This month, The Planetary Society calls attention to the dangers our planet faces from near-Earth objects (NEOs) through announcement of the discovery of South America's largest known impact crater by a researcher funded by a Planetary Society grant, participation in a meeting in Vienna of the United Nations Action Team-14, and publication of a special issue of The Planetary Report on planetary defense.

Learning from Past Impacts
Max Rocca, based in Buenos Aires, Argentina, applied for a Planetary Society grant to help fund his search for impact craters in South America. Rocca works as a systems analyst, but applies his passion for planetary geology to analyzing Landsat and aerial images of jungle features on his computer. He first noticed the curve of the Vichada River in Columbia in 2004. Could the river's course have been shaped by an ancient impact crater?

In 2008, Rocca made contact with a group of geologists at the National University in Bogota, Colombia, who were studying the Vichada River region on behalf of mining companies.

In cooperation with a colleague at Ohio State University, they examined the gravitational anomalies over the Vichada structure, confirming that Rocca's discovery was indeed an impact crater - at 50 kilometers in diameter, the largest in South America.

"Rocca's dedication and perseverance in making new discoveries is something we are proud to support," said Louis Friedman, Executive Director of The Planetary Society. "The Planetary Society is will continue to harness international resources on Earth and in space to understand the nature and threat of Near-Earth objects." Working with World Leaders

The United Nations Action Team-14 is a group within the UN COPUOS Scientific and Technical Subcommittee. It was established in 2001 to address the asteroid impact threat. Bruce Betts, The Planetary Society's Director of Projects, is attending the Vienna meeting, held February 12-16, 2010.

"The Planetary Society is pleased to join UN Action Team 14 to work with the world on international strategies for working together on the near-Earth object threat," said Betts from Vienna.

Educating the Public
The Planetary Society has dedicated the January/February 2010 issue of The Planetary Report to the question of what can and should be done if we find an asteroid headed toward Earth.

Charlene Anderson, Editor of The Planetary Report, introduces the issue:

"They have the potential to destroy civilization, and they whiz past our planet with alarming regularity. Sometimes we see them coming, and sometimes we don't. They are generically known as near-Earth objects (NEOs), commonly called asteroids and comets, and they pose a natural threat greater than any faced by our species in history. Fortunately for us, it's a threat we can do something about."

Articles in the special planetary defense issue of The Planetary Report include "To Move an Asteroid" by William Ailor, "Protecting Earth: Whose Job Is It?" by Friedman, and "Turning Cosmic Diaster into Opportunity" by former shuttle astronaut, Tom Jones.

The Planetary Society thanks the Secure World Foundation for its generous partnership in creating the special issue of The Planetary Report.

The Planetary Society has been supporting NEO-related projects for nearly three decades, including the on-going Gene Shoemaker Near-Earth Object Grant program to support amateur observers, observers in developing countries, and professional astronomers who, with seed funding, can greatly contribute to NEO research.

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