This is how NASA spots potentially dangerous asteroids near Earth

This is how you find a space rock.
 By 
Miriam Kramer
 on 
This is how NASA spots potentially dangerous asteroids near Earth
Watch Next

Ever wonder how NASA is able to find and track possibly hazardous asteroids near our planet? Well, this video explainer has you covered.

It was released on World Asteroid Day, which is devoted to raising public awareness of the dangers of asteroids and comets in our cosmic backyard. NASA has actually discovered tens of thousands of asteroids floating around our part of space.

Asteroid Day takes place every June 30, on the anniversary of the Tunguska event, which occurred in 1908. On that day, researchers think a 40-meter-wide space rock entered the atmosphere over Siberia flattening trees for about 800 square miles.

This event shows just how dangerous and destructive these kinds of asteroid impacts can be.

Mashable Image
Miriam Kramer

Miriam Kramer worked as a staff writer for Space.com for about 2.5 years before joining Mashable to cover all things outer space. She took a ride in weightlessness on a zero-gravity flight and watched rockets launch to space from places around the United States. Miriam received her Master's degree in science, health and environmental reporting from New York University in 2012, and she originally hails from Knoxville, Tennessee. Follow Miriam on Twitter at @mirikramer.


Latest Videos

'The Daily Show' reacts to judge halting Trump's White House ballroom
Desi Lydic presents "The Daily Show" beside an image of Donald Trump.



A24's 'Mother Mary' trailer is worth it for the FKA twigs track
Anne Hathway is dressed in a red pop star outfit with religious overtones in a film still from "Mother Mary."

Jon Stewart has a brutal reaction to Trump waffling about pens
A man in a suit sitting behind a talk show desk looks angry. In the top left is an image of the president holding up a pen.

Stephen Colbert gleefully recaps the best signs at the 'No Kings' protest
A man in a suit stands on a talk show stage, smiling. The caption at the bottom reads, "I like that one."

Riz Ahmed is troublingly intense in new 'SNL UK' promo
A close-up of a man grinning in a slightly creepy way.



Is This The End of Hollywood's ‘Bad Moms’?
Recent representations of motherhood on film: (from left) Amy Adams in 'Nightbitch', Jennifer Lawrence in 'Die My Love', and Rose Byrne in 'If I Had Legs I'd Kick You'
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!