NASA's massive new rocket has begun its first journey to a launch pad ahead of a battery of tests that will clear it to blast off to the Moon this winter. Key points: <ul><li>The rocket will underg… [+4320 chars]
An asteroid around the size of a refrigerator was spotted hours before it hit Earth's atmosphere, and while it wasn't dangerous, it marked the fifth time in history an asteroid was detected right bef… [+3423 chars]