Asteroid Swings by Earth TODAY
Cover art for Near-Earth Objects: Finding them before they find us by Dr. Don Yeomans
Credit: Princeton University Press


On Feburary 15, 2013 a small asteroid swings by Earth, giving NASA scientists an opportunity to study a Near-Earth Object up close.

Watch the free live webcast here starting 11 am Pacific (2 pm Eastern)
OR here:
Only about half the length of a football field, this asteroid will safely pass by about 17,000 miles above the surface of Earth.  

Let's make a model to understand the size and distance better:
Imagine you have an Earth globe about 12 inches in diameter.  On that scale, the asteroid would be smaller than a grain of sand and would pass about two feet away from the globe.

Click here to watch the NASA videos about the asteroid and get your questions answered.

Experience the joys of learning about our Earth and sky
Experiencing joy at the universe

(Photo Credit: Charlie Bates Solar Astronomy Project)


Join our vibrant stargazing community!

We invite you to join the NASA Night Sky Network stargazing community on Facebook and Twitter for sky charts, beautiful images, and lively conversation. 

Find star parties held by astronomy clubs in your area quickly using these apps or use the website!

Go StarGaze, the NASA Night Sky Network astronomy app, developed by the Astronomical Society of the Pacific, helps you find astronomy clubs and their stargazing events on the go!

Distant Suns, your personal guide to the cosmos, lists Night Sky Network astronomy club star parties, safe solar gazing events, and lectures in the main navigation bar. Distant Suns is available on iPhone, iPad, Kindle, and NOOK.

SkySafari, a powerful planetarium that fits in your pocket, lists Night Sky Network astronomy club star parties, safe solar gazing events, and lectures in the help menu. SkySafari is available for Android and the iPhone, iPad, and iPod Touch.

Clear skies and happy stargazing!

The NASA Night Sky Network is managed by the Astronomical Society of the Pacific in cooperation with NASA