WISE finds the very first Earth Trojan asteroid
Updated: 2011-07-27 18:17:47
Subscribe Give a Gift Archives Customer Service SEARCH Health Medicine Mind Brain Technology Space Human Origins Living World Environment Physics Math Video Photos Podcast RSS Stunning portrait of galactic triplets New meteor shower points to a future close encounter WISE finds the very first Earth Trojan asteroid NASA’s Wide-field Infrared Survey Explorer WISE has found the very first asteroid that more or less shares an orbit with Earth Called 2010 TK 7 this asteroid is about 300 meters roughly 1000 feet across , and is the first in an up-to-now theoretical class of objects called Earth . Trojans Here’s a WISE image of the little : bugger Doesn’t look like much , does it Of course , from 80 million km 50 million miles from Earth it’s amazing we can see it at all . Moreover , given its
On the Planetary Society web site: The End of the Space Shuttle Program
Subscribe Give a Gift Archives Customer Service SEARCH Health Medicine Mind Brain Technology Space Human Origins Living World Environment Physics Math Video Photos Podcast RSS Nearby earth-like” planet : not so much Atlantis launch in 3D Pluto has another moon This is pretty nifty : astronomers have discovered a fourth moon orbiting Pluto The tiny chunk of ice was found in Hubble images taken just a few weeks ago , and was clearly seen among the three previously known : satellites It doesn’t have a name yet it’s designated S 2011 P1 or just P4 informally and it’s only about 13 34 km 8 to 21 miles across . The size is estimated by measuring its brightness and assuming it’s icy like Pluto itself a more reflective white or icy object would appear brighter than a darker object if they are the