Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
Blogs

Blog Archive

 

Early warning for close approaches of two house-sized asteroids

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.

Read More »

The Potential to Destroy Civilization? Now on YouTube

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.

Read More »

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

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).

Read More »

Report from the Exploration of Near-Earth Objects Objectives Workshop

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.

Read More »

One month, one journal, so many missed space stories!

Posted by Emily Lakdawalla on 2010/06/24 10:53 CDT

Or: Emily reads you the table of contents of Icarus.

Read More »

Arecibo saves us from another potentially hazardous asteroid

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.

Read More »

Propose for a Shoemaker Near Earth Object Grant

Posted by Emily Lakdawalla on 2010/03/17 01:39 CDT

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

Read More »

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

Posted by Bruce Betts on 2010/02/15 06:10 CST

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.

Read More »

Planetary Society Researcher Max Rocca Discovers Largest Impact Crater in South America

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.

Read More »

2010 AL30: Watch out for low-flying asteroids

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.

Read More »

Near Earth Objects and Planetary Defense

Posted by Emily Lakdawalla on 2009/11/26 08:52 CST

Could a space rock hit Earth and cause widespread devastation? What could we do if we found an asteroid or comet on a collision course with Earth?

Read More »

Apophis is less scary than it used to be

Posted by Bruce Betts on 2009/10/07 04:15 CDT

Based on analyses of previously unstudied telescopic data, NASA scientists have released new predictions for the path of the 300-meter-diameter asteroid Apophis.

Read More »

Triple asteroid 1994 CC rotation animation

Posted by Emily Lakdawalla on 2009/08/06 10:39 CDT

From the "just plain cool" department. I love animations of planetary images and I love radar images of asteroids -- so this animation is doubly cool.

Read More »

Astronomers Revise Torino Scale Asteroid Advisory System

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.

Read More »

Close Your Left Eye, Then Your Right: Simultaneous Observations of Asteroid 4179 Toutatis from Two Chilean Telescopes Demonstrate Parallax

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

Read More »

Very Close Approach by Asteroid 4179 Toutatis: It's Not a Crisis, It's an Opportunity

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.

Read More »

Items 41 - 56 of 56  Previous123
Facebook Twitter Email RSS AddThis

JOIN THE
PLANETARY SOCIETY

Beyond The Horizon, There's More To Explore!

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Us

Featured Images

Exploration Mission 1 Orion flight spacecraft
Neptune from Voyager 2
Crescent Neptune and Triton
Neptune's Great Dark Spot
More Images

Featured Video

The Planetary Post - Star Trek 50th Anniversary

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join The Planetary Society

Let’s explore the cosmos together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!