Today is Asteroid Day, and it"s a reminder that as our planet follows its path around the sun, it encounters a lot of stuff. Science tells us that every day, Earth"s atmosphere is hit with roughly 100 tons of dust and particles the size of a grain of sand. And every year, at least 30 small asteroids enter the atmosphere, only to burn up before touching the ground. NASA says it"s pretty much guaranteed that at least one of them will be about the size of a car. As time progresses, the likelihood increases that even larger celestial rocks will hit the ground and cause significant damage.
Asteroid Day
Today in History
More Desktop Wallpapers:
-
In Texas, even the riverbend is big
-
Kelp buddies
-
Brown bears, Katmai National Park and Preserve, Alaska
-
Roman theater of Cartagena, Spain
-
Amelia Earhart
-
Yi Peng lantern festival, Chiang Mai, Thailand
-
Swim city
-
Stop and see the flowers
-
Rapa Valley in Sarek National Park, Sweden
-
World Bicycle Day
-
Taughannock Falls State Park
-
Monet still makes an impression
-
Cherry blossoms at the National Mall, Washington, DC
-
Fiesta at Siesta
-
Stompin’ with the Big Chief
-
Have fun storming the castle
-
International Literacy Day
-
International Jazz Day
-
Wind horses carry wishes for a new year
-
The ‘Night of Nights’
-
Everyone s watching the Perseids
-
Get amped for Glastonbury
-
In celebration of cats
-
Old Town Quito
-
The Grand Départ: Tour de France begins
-
Tiny fliers head south
-
Ayutthaya Historical Park, Thailand
-
Nuwara Eliya, Sri Lanka
-
An opulent backdrop for a historic event
-
Looking back at Yellowstone, 30 years after the fires
Bing Wallpaper Gallery

