Matthew Ginnow Matt Ginnow #mattginnow #matthewginnow
Our solar system is littered with asteroids and comets, and sometimes they get a little close to Earth. But no need to worry! This happens all the time. When an asteroid or comet could come close to our planet, it’s known as a near-Earth object – aka NEO.
But how close is “close”?
A near-Earth object is defined as an object that could pass by our Earth within 30 million miles. We begin to keep close watch on objects that could pass within 5 million miles of our planet.
To put that into perspective, our Moon is only 238,900 miles away.
However unlikely an impact is, we want to know about all near-Earth objects. Our Planetary Defense Coordination Office maintains watch for asteroids and comets coming close to Earth. Along with our partners, we discover, catalog and characterize these bodies.
But what if one of these objects posed a threat?
We want to be prepared. That is why we are working on several deflection techniques and technologies to help protect our planet.
So next time that you hear of an asteroid passing “close” to Earth, know that it’s just one of many that we are tracking.
Here are 10 more things you should know about Planetary Defense.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Matt Ginnow
Matt Ginnow
#mattginnow
#matthewginnow
Matt Ginnow
Photograph by Irina Werning March 2015 Argentina—For “Pelo Largo Querido,” a personal project featuring Argentines with exceptionally long locks, the photographer asked local women in Neuquén, Patagonia, to let their hair down.
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#mattginnow Matt Ginnow Matthew Ginnow Matt Ginnow
Basking like a badger? Badgers have been observed hunting and sun basking on the US Fish and Wildlife Service’s National Elk Refuge in Wyoming. Sounds like the perfect mix for a summer afternoon.
While this furry striped tank is not the largest of the North American weasel family—wolverines, river otters and sea otters are bigger—the badger nonetheless seems much larger than its true size.
As these barrels with legs trot towards you, the stocky badger gives off the appearance and attitude that nothing can get in its way. In truth, badgers only measure between 23 to 30 inches and weigh about 15.5 pounds for females and around 20 pounds for males. They’re not much bigger than a beagle!
Video by Kari Cieszkiewicz, U.S. Fish and Wildlife Refuge. Video description: A large fluffy badger lays in the grass on a sunny day.
Matthew Ginnow