Posted by Bruce Betts on 2012/05/08 03:43 CDT
Evidence continues to pile up that the Rio Vichada structure in Colombia is indeed the largest impact structure in South America.
With a new CCD camera configured to shoot rapid, short exposures bought with a Planetary Society Shoemaker NEO Grant we caught near-Earth asteroid 2012 DA14.
Posted by Mat Kaplan on 2012/03/06 10:18 CST
A new installment of our "Snapshots" video series examines the threat posed by asteroids on collision courses with our home planet. Emily Lakdawalla explains why it's so important to find, understand and learn to deflect these potential civilization enders.
Posted by Amir Alexander on 2010/02/13 12:00 CST
It was January of 2004 when the elegant curve of the Vichada first caught the attention of geologist Max Rocca of Buenos Aires. Could the course of the river have been shaped by the circular outlines of an impact crater? Rocca decided to find out.