Spacequakes

From Science @ NASA.gov Researchers using NASA’s fleet of five THEMIS spacecraft have discovered a form of space weather that packs the punch of an earthquake and plays a key role in sparking bright Northern Lights. They call it “the spacequake.” A spacequake in action. Click to launch a computer-simulated movie created by Walt Feimer…

Step Changes in Science Blog Climate

Guest post by WUWT moderator Mike Lorrey One of the nice tools that alexa.com has is that it lets you compare multiple sites against each other. For those with competition of either economic or political nature, this is of high importance to gauge how well one is doing achieving one’s marketshare or mindshare goals, and…