In the news today is more information about the growing ozone hole over Antarctica. Now it just happens that yesterday I was looking up information on the Earth’s magnetic field when I came across an interesting fact that I didn’t realize. The Earth’s magnetic field is weakening and has done so by at least 10% [...]
So here is a scary thought: Asteroid 2007 TU24 was discovered on October 11, 2007 and it was only determined on January 24th, 2008 to not be a threat. What is the problem here? The closest approach to Earth of this object was calculated to be just 5 days later.
Now I don’t know about you [...]
The lastest news out of NASA is the revelation of a massive impact crater on Mars which possibly accounts for the differences in geological appearance between the northern and southern hemispheres. One suggestion is that such a collision occurred roughly 3.9 Billion years ago. However even a cursory glace at our own world shows all kinds [...]