Asteroid Day

I am late with this. I just learned from this tweet by Neil deGrasse Tyson that yesterday was asteroid day. There is a campaign that wants to increase awareness about the threat from asteroids. The date is set after the 1908 Tunguska event, which happened on June 30th. The campaign wants to increase funding for finding … [Read more…]

Old Carbon

Here is a short elevator pitch video from NASA about global warming: The interesting thing is that it talks about “old carbon”. It explains that the carbon stored in coal was stored there hundreds of millions of years before. And we are releasing it now. It does not discuss the issue from the point of … [Read more…]