cosmos
Tag archives for cosmos
It was so unexpected that we thought there was something wrong with the instrument
Posted by Greg Laden on March 5, 2013 I love it when scientists say that! And, so said scientist Daniel Baker, speaking of a newly observed feature of the famous and well known, or at least, we thought well known, Van Allen Belts. First discovered in 1958, the Van Allen belts have been thought to comprise two reservoirs of high-speed, electrically charged particles,…
The Asteroid That Is Coming Really Close To Earth
Posted by Greg Laden on February 5, 2013 
In February, Asteroid 2012 DA 14 will come so close to earth that it will be nearer to our planet than many satellites are. This asteroid, which really should get a new name, is about half the size of a football field. Its orbit is similar to that of the Earth itself, in size and…
Something from outer space that really DID happen
Posted by Greg Laden on January 21, 2013 
Never mind Fresh Water Diatoms hitching a ride on meteors. We’ve got a possible Gamma Ray Burst in about 774 or 775 CE to talk about. Phil Plait has described the phenomenon which is reported here. The tl;dr: Extra 14C Beryllium in tree rings laid down at that time had to come from somewhere, and…
, which is now available for the 
