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2010 JL33: How to see an asteroid from quite a long way away

Emily Lakdawalla • January 13, 2011

A terrific set of Goldstone radar images of a good-sized near-Earth asteroids named 2010 JL33 was posted to the JPL website yesterday. They also posted a movie version but something about these pixelated radar image series absolutely begs for them to be displayed as an old-school animated GIF, so I made one.

Early warning for close approaches of two house-sized asteroids

Emily Lakdawalla • September 08, 2010

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.

The Potential to Destroy Civilization? Now on YouTube

Charlene Anderson • August 29, 2010

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.

Report from the Exploration of Near-Earth Objects Objectives Workshop - Day 2

Bruce Betts • August 11, 2010

It's day 2 at NASA's Exploration of Near Earth Objects (NEO) Objectives workshop (ExploreNOW).

Report from the Exploration of Near-Earth Objects Objectives Workshop

Bruce Betts • August 10, 2010

This week, Jennifer Vaughn and I are representing the Planetary Society at NASA's Exploration of Near-Earth Objects (NEO) Objectives Workshop, or ExploreNOW.

How radio telescopes get "images" of asteroids

Emily Lakdawalla • April 29, 2010

Every time I post a radio telescope image of a near-Earth asteroid, I get at least one reader question asking me to explain how radio telescopes take photos, so I'm hereby writing a post explaining the basics of how delay-Doppler imaging works.

Arecibo saves us from another potentially hazardous asteroid

Emily Lakdawalla • April 29, 2010

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.

Updates on Shoemaker NEO Grant Recipients

Bruce Betts • March 18, 2010

Our past Shoemaker NEO grant recipients have once again shown themselves to be a hardworking and enterprising group.

Propose for a Shoemaker Near Earth Object Grant

Emily Lakdawalla • March 17, 2010

Are you a serious amateur astronomer who enjoys the challenge of following up on the discoveries of faint near-Earth objects?

Inside the U.N.'s Near Earth Object Working Group

Bruce Betts • February 15, 2010

This week Bruce Betts is attending a U.N. meeting in Austria, in particular the parts focused on international considerations of the near-Earth object threat.

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