Posted by Emily Lakdawalla on 2010/09/08 01:31 CDT
Most of you have probably heard by now of two small asteroids, both in the neighborhood of 10 meters in diameter, recently discovered on trajectories that pass unusually close to Earth.
Posted by Charlene Anderson on 2010/08/29 11:58 CDT
Visualization can help the brain comprehend what words and numbers can struggle to covey. There's a YouTube video posted by "szyzyg" making the rounds right now that drives that point home.
Posted by Bruce Betts on 2010/08/11 04:45 CDT
It's day 2 at NASA's Exploration of Near Earth Objects (NEO) Objectives workshop (ExploreNOW).
Posted by Bruce Betts on 2010/08/10 03:14 CDT
This week, Jennifer Vaughn and I are representing the Planetary Society at NASA's Exploration of Near-Earth Objects (NEO) Objectives Workshop, or ExploreNOW.
Posted by Emily Lakdawalla on 2010/06/24 10:53 CDT
Or: Emily reads you the table of contents of Icarus.
Posted by Emily Lakdawalla on 2010/04/29 02:04 CDT
That's a bit of an overdramatic title, but it's true that the most efficient way for us to reduce the risk we face from asteroids that have a very small chance of hitting Earth in the future is to determine their orbits more precisely.
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.
Posted by Emily Lakdawalla on 2010/01/12 11:52 CST
In less than 24 hours, a newly discovered asteroid known as 2010 AL30 will be zipping past Earth at an altitude of approximately a third the Earth-Moon distance. There's no chance it'll hit us, but it's generating a lot of excitement in the community of amateur and professional near-Earth asteroid observers.
Posted by A.J.S. Rayl on 2005/04/20 03:25 CDT
Astronomers have revised the Torino scale, the color-coded advisory system to assess the threat of asteroids and other near-Earth objects (NEOs) to make it easier for the public to understand.
Posted by Emily Lakdawalla on 2004/09/29 12:00 CDT
This morning, asteroid 4179 Toutatis was so close to Earth that simultaneous observations from two telescopes in the same country could show parallax that is obvious even to the least experienced observer. The two telescopes belong to The European Southern Observatory and are located at La Silla and Paranal in Chile
Posted by Emily Lakdawalla on 2004/09/27 12:00 CDT
On Wednesday, September 29, Earth will dodge a cannonball: the Near-Earth Asteroid known as 4179 Toutatis will buzz by at a distance only four times the distance from the Earth to the Moon -- about one and a half million kilometers, or about a million miles. But, as the wisdom goes, "close" only counts in horseshoes and hand grenades; Toutatis' flyby will have no effect whatsoever on us.