Skeptophilia

If a large meteorite collided with the Earth, it would seriously  ruin your day. Depending on its size and where it hit, it could ruin your ...

It's remarkably hard to find evidence of impact craters on the Earth. If you're thinking, "What's the difficulty?  Just loo...

New from the "Well, I Guess  That's A Silver Lining?" department, we have: a massive meteorite collision 3.26 billion years ag...

Tektites  are curious, glassy blobs of rock, from millimeters to centimeters in diameter.  At first thought to be similar to obsidian (volc...

I've written here before about the rather sobering topic of mass extinctions, and from what reading I've done on the topic, it alway...

It's easy to get overwhelmed when you start looking into geology. Both the size scale and the time scale are so immense that it's ha...

I've dealt more than once here at Skeptophilia  with the repeated mass extinctions the Earth has undergone.  Part of this is that I have...