The universe is sending us a valentine--Asteroid 2012 DA14--flies by February 15 as close as 28,000 kms.

Fun facts:
* An asteroid this size hit Siberia in 1908, knocking down around 80 million trees in an area half the size of Rhode Island
* We only spotted this one last year, which is why it is called "2012 stuff"
* Not even Ben Affleck and Bruce Willis wouldn't have been able to stop it had it been on a collision course.

Question

The universe is sending us a valentine--Asteroid 2012 DA14--flies by February 15 as close as 28,000 kms. 

Fun facts:
* An asteroid this size hit Siberia in 1908, knocking down around 80 million trees in an area half the size of Rhode Island
* We only spotted this one last year, which is why it is called "2012 stuff"
* Not even Ben Affleck and Bruce Willis wouldn't have been able to stop it had it been on a collision course.

jamesj · Answer

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anonymous · Answer

Cool!! how big is it?

jamesj · Answer

About 50 meters across. http://neo.jpl.nasa.gov/news/news174.html

anonymous · Answer

Assuming composition is granite and it is spherical and traveling about 30000 mi/h it will have a punch of approximately 3.8 Megatons of TNT with a direct hit.